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<a class="jxr_linenumber" name="L1" href="#L1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="L2" href="#L2">2</a>   <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</em>
<a class="jxr_linenumber" name="L3" href="#L3">3</a>   <em class="jxr_comment"> * contributor license agreements.  See the NOTICE file distributed with</em>
<a class="jxr_linenumber" name="L4" href="#L4">4</a>   <em class="jxr_comment"> * this work for additional information regarding copyright ownership.</em>
<a class="jxr_linenumber" name="L5" href="#L5">5</a>   <em class="jxr_comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</em>
<a class="jxr_linenumber" name="L6" href="#L6">6</a>   <em class="jxr_comment"> * (the "License"); you may not use this file except in compliance with</em>
<a class="jxr_linenumber" name="L7" href="#L7">7</a>   <em class="jxr_comment"> * the License.  You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="L8" href="#L8">8</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="L9" href="#L9">9</a>   <em class="jxr_comment"> *      <a href="http://www.apache.org/licenses/LICENSE-2." target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.</a>0</em>
<a class="jxr_linenumber" name="L10" href="#L10">10</a>  <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="L11" href="#L11">11</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="L12" href="#L12">12</a>  <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a class="jxr_linenumber" name="L13" href="#L13">13</a>  <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a class="jxr_linenumber" name="L14" href="#L14">14</a>  <em class="jxr_comment"> * See the License for the specific language governing permissions and</em>
<a class="jxr_linenumber" name="L15" href="#L15">15</a>  <em class="jxr_comment"> * limitations under the License.</em>
<a class="jxr_linenumber" name="L16" href="#L16">16</a>  <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="L17" href="#L17">17</a>  <strong class="jxr_keyword">package</strong> org.apache.commons.fileupload;
<a class="jxr_linenumber" name="L18" href="#L18">18</a>  
<a class="jxr_linenumber" name="L19" href="#L19">19</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> java.lang.String.format;
<a class="jxr_linenumber" name="L20" href="#L20">20</a>  
<a class="jxr_linenumber" name="L21" href="#L21">21</a>  <strong class="jxr_keyword">import</strong> java.io.ByteArrayOutputStream;
<a class="jxr_linenumber" name="L22" href="#L22">22</a>  <strong class="jxr_keyword">import</strong> java.io.IOException;
<a class="jxr_linenumber" name="L23" href="#L23">23</a>  <strong class="jxr_keyword">import</strong> java.io.InputStream;
<a class="jxr_linenumber" name="L24" href="#L24">24</a>  <strong class="jxr_keyword">import</strong> java.io.OutputStream;
<a class="jxr_linenumber" name="L25" href="#L25">25</a>  <strong class="jxr_keyword">import</strong> java.io.UnsupportedEncodingException;
<a class="jxr_linenumber" name="L26" href="#L26">26</a>  
<a class="jxr_linenumber" name="L27" href="#L27">27</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.fileupload.FileUploadBase.FileUploadIOException;
<a class="jxr_linenumber" name="L28" href="#L28">28</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.fileupload.util.Closeable;
<a class="jxr_linenumber" name="L29" href="#L29">29</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.fileupload.util.Streams;
<a class="jxr_linenumber" name="L30" href="#L30">30</a>  
<a class="jxr_linenumber" name="L31" href="#L31">31</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L32" href="#L32">32</a>  <em class="jxr_javadoccomment"> * &lt;p&gt; Low level API for processing file uploads.</em>
<a class="jxr_linenumber" name="L33" href="#L33">33</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="L34" href="#L34">34</a>  <em class="jxr_javadoccomment"> * &lt;p&gt; This class can be used to process data streams conforming to MIME</em>
<a class="jxr_linenumber" name="L35" href="#L35">35</a>  <em class="jxr_javadoccomment"> * 'multipart' format as defined in</em>
<a class="jxr_linenumber" name="L36" href="#L36">36</a>  <em class="jxr_javadoccomment"> * &lt;a href="<a href="http://www.ietf.org/rfc/rfc1867.txt" target="alexandria_uri">http://www.ietf.org/rfc/rfc1867.txt</a>"&gt;RFC 1867&lt;/a&gt;. Arbitrarily</em>
<a class="jxr_linenumber" name="L37" href="#L37">37</a>  <em class="jxr_javadoccomment"> * large amounts of data in the stream can be processed under constant</em>
<a class="jxr_linenumber" name="L38" href="#L38">38</a>  <em class="jxr_javadoccomment"> * memory usage.</em>
<a class="jxr_linenumber" name="L39" href="#L39">39</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="L40" href="#L40">40</a>  <em class="jxr_javadoccomment"> * &lt;p&gt; The format of the stream is defined in the following way:&lt;br&gt;</em>
<a class="jxr_linenumber" name="L41" href="#L41">41</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="L42" href="#L42">42</a>  <em class="jxr_javadoccomment"> * &lt;code&gt;</em>
<a class="jxr_linenumber" name="L43" href="#L43">43</a>  <em class="jxr_javadoccomment"> *   multipart-body := preamble 1*encapsulation close-delimiter epilogue&lt;br&gt;</em>
<a class="jxr_linenumber" name="L44" href="#L44">44</a>  <em class="jxr_javadoccomment"> *   encapsulation := delimiter body CRLF&lt;br&gt;</em>
<a class="jxr_linenumber" name="L45" href="#L45">45</a>  <em class="jxr_javadoccomment"> *   delimiter := "--" boundary CRLF&lt;br&gt;</em>
<a class="jxr_linenumber" name="L46" href="#L46">46</a>  <em class="jxr_javadoccomment"> *   close-delimiter := "--" boundary "--"&lt;br&gt;</em>
<a class="jxr_linenumber" name="L47" href="#L47">47</a>  <em class="jxr_javadoccomment"> *   preamble := &amp;lt;ignore&amp;gt;&lt;br&gt;</em>
<a class="jxr_linenumber" name="L48" href="#L48">48</a>  <em class="jxr_javadoccomment"> *   epilogue := &amp;lt;ignore&amp;gt;&lt;br&gt;</em>
<a class="jxr_linenumber" name="L49" href="#L49">49</a>  <em class="jxr_javadoccomment"> *   body := header-part CRLF body-part&lt;br&gt;</em>
<a class="jxr_linenumber" name="L50" href="#L50">50</a>  <em class="jxr_javadoccomment"> *   header-part := 1*header CRLF&lt;br&gt;</em>
<a class="jxr_linenumber" name="L51" href="#L51">51</a>  <em class="jxr_javadoccomment"> *   header := header-name ":" header-value&lt;br&gt;</em>
<a class="jxr_linenumber" name="L52" href="#L52">52</a>  <em class="jxr_javadoccomment"> *   header-name := &amp;lt;printable ascii characters except ":"&amp;gt;&lt;br&gt;</em>
<a class="jxr_linenumber" name="L53" href="#L53">53</a>  <em class="jxr_javadoccomment"> *   header-value := &amp;lt;any ascii characters except CR &amp;amp; LF&amp;gt;&lt;br&gt;</em>
<a class="jxr_linenumber" name="L54" href="#L54">54</a>  <em class="jxr_javadoccomment"> *   body-data := &amp;lt;arbitrary data&amp;gt;&lt;br&gt;</em>
<a class="jxr_linenumber" name="L55" href="#L55">55</a>  <em class="jxr_javadoccomment"> * &lt;/code&gt;</em>
<a class="jxr_linenumber" name="L56" href="#L56">56</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="L57" href="#L57">57</a>  <em class="jxr_javadoccomment"> * &lt;p&gt;Note that body-data can contain another mulipart entity.  There</em>
<a class="jxr_linenumber" name="L58" href="#L58">58</a>  <em class="jxr_javadoccomment"> * is limited support for single pass processing of such nested</em>
<a class="jxr_linenumber" name="L59" href="#L59">59</a>  <em class="jxr_javadoccomment"> * streams.  The nested stream is &lt;strong&gt;required&lt;/strong&gt; to have a</em>
<a class="jxr_linenumber" name="L60" href="#L60">60</a>  <em class="jxr_javadoccomment"> * boundary token of the same length as the parent stream (see {@link</em>
<a class="jxr_linenumber" name="L61" href="#L61">61</a>  <em class="jxr_javadoccomment"> * #setBoundary(byte[])}).</em>
<a class="jxr_linenumber" name="L62" href="#L62">62</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="L63" href="#L63">63</a>  <em class="jxr_javadoccomment"> * &lt;p&gt;Here is an example of usage of this class.&lt;br&gt;</em>
<a class="jxr_linenumber" name="L64" href="#L64">64</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="L65" href="#L65">65</a>  <em class="jxr_javadoccomment"> * &lt;pre&gt;</em>
<a class="jxr_linenumber" name="L66" href="#L66">66</a>  <em class="jxr_javadoccomment"> *   try {</em>
<a class="jxr_linenumber" name="L67" href="#L67">67</a>  <em class="jxr_javadoccomment"> *     MultipartStream multipartStream = new MultipartStream(input, boundary);</em>
<a class="jxr_linenumber" name="L68" href="#L68">68</a>  <em class="jxr_javadoccomment"> *     boolean nextPart = multipartStream.skipPreamble();</em>
<a class="jxr_linenumber" name="L69" href="#L69">69</a>  <em class="jxr_javadoccomment"> *     OutputStream output;</em>
<a class="jxr_linenumber" name="L70" href="#L70">70</a>  <em class="jxr_javadoccomment"> *     while(nextPart) {</em>
<a class="jxr_linenumber" name="L71" href="#L71">71</a>  <em class="jxr_javadoccomment"> *       String header = multipartStream.readHeaders();</em>
<a class="jxr_linenumber" name="L72" href="#L72">72</a>  <em class="jxr_javadoccomment"> *       // process headers</em>
<a class="jxr_linenumber" name="L73" href="#L73">73</a>  <em class="jxr_javadoccomment"> *       // create some output stream</em>
<a class="jxr_linenumber" name="L74" href="#L74">74</a>  <em class="jxr_javadoccomment"> *       multipartStream.readBodyData(output);</em>
<a class="jxr_linenumber" name="L75" href="#L75">75</a>  <em class="jxr_javadoccomment"> *       nextPart = multipartStream.readBoundary();</em>
<a class="jxr_linenumber" name="L76" href="#L76">76</a>  <em class="jxr_javadoccomment"> *     }</em>
<a class="jxr_linenumber" name="L77" href="#L77">77</a>  <em class="jxr_javadoccomment"> *   } catch(MultipartStream.MalformedStreamException e) {</em>
<a class="jxr_linenumber" name="L78" href="#L78">78</a>  <em class="jxr_javadoccomment"> *     // the stream failed to follow required syntax</em>
<a class="jxr_linenumber" name="L79" href="#L79">79</a>  <em class="jxr_javadoccomment"> *   } catch(IOException e) {</em>
<a class="jxr_linenumber" name="L80" href="#L80">80</a>  <em class="jxr_javadoccomment"> *     // a read or write error occurred</em>
<a class="jxr_linenumber" name="L81" href="#L81">81</a>  <em class="jxr_javadoccomment"> *   }</em>
<a class="jxr_linenumber" name="L82" href="#L82">82</a>  <em class="jxr_javadoccomment"> * &lt;/pre&gt;</em>
<a class="jxr_linenumber" name="L83" href="#L83">83</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="L84" href="#L84">84</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MultipartStream</a> {
<a class="jxr_linenumber" name="L85" href="#L85">85</a>  
<a class="jxr_linenumber" name="L86" href="#L86">86</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L87" href="#L87">87</a>  <em class="jxr_javadoccomment">     * Internal class, which is used to invoke the</em>
<a class="jxr_linenumber" name="L88" href="#L88">88</a>  <em class="jxr_javadoccomment">     * {@link ProgressListener}.</em>
<a class="jxr_linenumber" name="L89" href="#L89">89</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L90" href="#L90">90</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">ProgressNotifier</a> {
<a class="jxr_linenumber" name="L91" href="#L91">91</a>  
<a class="jxr_linenumber" name="L92" href="#L92">92</a>          <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L93" href="#L93">93</a>  <em class="jxr_javadoccomment">         * The listener to invoke.</em>
<a class="jxr_linenumber" name="L94" href="#L94">94</a>  <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L95" href="#L95">95</a>          <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../org/apache/commons/fileupload/ProgressListener.html">ProgressListener</a> listener;
<a class="jxr_linenumber" name="L96" href="#L96">96</a>  
<a class="jxr_linenumber" name="L97" href="#L97">97</a>          <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L98" href="#L98">98</a>  <em class="jxr_javadoccomment">         * Number of expected bytes, if known, or -1.</em>
<a class="jxr_linenumber" name="L99" href="#L99">99</a>  <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L100" href="#L100">100</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">long</strong> contentLength;
<a class="jxr_linenumber" name="L101" href="#L101">101</a> 
<a class="jxr_linenumber" name="L102" href="#L102">102</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L103" href="#L103">103</a> <em class="jxr_javadoccomment">         * Number of bytes, which have been read so far.</em>
<a class="jxr_linenumber" name="L104" href="#L104">104</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L105" href="#L105">105</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">long</strong> bytesRead;
<a class="jxr_linenumber" name="L106" href="#L106">106</a> 
<a class="jxr_linenumber" name="L107" href="#L107">107</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L108" href="#L108">108</a> <em class="jxr_javadoccomment">         * Number of items, which have been read so far.</em>
<a class="jxr_linenumber" name="L109" href="#L109">109</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L110" href="#L110">110</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> items;
<a class="jxr_linenumber" name="L111" href="#L111">111</a> 
<a class="jxr_linenumber" name="L112" href="#L112">112</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L113" href="#L113">113</a> <em class="jxr_javadoccomment">         * Creates a new instance with the given listener</em>
<a class="jxr_linenumber" name="L114" href="#L114">114</a> <em class="jxr_javadoccomment">         * and content length.</em>
<a class="jxr_linenumber" name="L115" href="#L115">115</a> <em class="jxr_javadoccomment">         *</em>
<a class="jxr_linenumber" name="L116" href="#L116">116</a> <em class="jxr_javadoccomment">         * @param pListener The listener to invoke.</em>
<a class="jxr_linenumber" name="L117" href="#L117">117</a> <em class="jxr_javadoccomment">         * @param pContentLength The expected content length.</em>
<a class="jxr_linenumber" name="L118" href="#L118">118</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L119" href="#L119">119</a>         <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">ProgressNotifier</a>(<a href="../../../../org/apache/commons/fileupload/ProgressListener.html">ProgressListener</a> pListener, <strong class="jxr_keyword">long</strong> pContentLength) {
<a class="jxr_linenumber" name="L120" href="#L120">120</a>             listener = pListener;
<a class="jxr_linenumber" name="L121" href="#L121">121</a>             contentLength = pContentLength;
<a class="jxr_linenumber" name="L122" href="#L122">122</a>         }
<a class="jxr_linenumber" name="L123" href="#L123">123</a> 
<a class="jxr_linenumber" name="L124" href="#L124">124</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L125" href="#L125">125</a> <em class="jxr_javadoccomment">         * Called to indicate that bytes have been read.</em>
<a class="jxr_linenumber" name="L126" href="#L126">126</a> <em class="jxr_javadoccomment">         *</em>
<a class="jxr_linenumber" name="L127" href="#L127">127</a> <em class="jxr_javadoccomment">         * @param pBytes Number of bytes, which have been read.</em>
<a class="jxr_linenumber" name="L128" href="#L128">128</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L129" href="#L129">129</a>         <strong class="jxr_keyword">void</strong> noteBytesRead(<strong class="jxr_keyword">int</strong> pBytes) {
<a class="jxr_linenumber" name="L130" href="#L130">130</a>             <em class="jxr_comment">/* Indicates, that the given number of bytes have been read from</em>
<a class="jxr_linenumber" name="L131" href="#L131">131</a> <em class="jxr_comment">             * the input stream.</em>
<a class="jxr_linenumber" name="L132" href="#L132">132</a> <em class="jxr_comment">             */</em>
<a class="jxr_linenumber" name="L133" href="#L133">133</a>             bytesRead += pBytes;
<a class="jxr_linenumber" name="L134" href="#L134">134</a>             notifyListener();
<a class="jxr_linenumber" name="L135" href="#L135">135</a>         }
<a class="jxr_linenumber" name="L136" href="#L136">136</a> 
<a class="jxr_linenumber" name="L137" href="#L137">137</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L138" href="#L138">138</a> <em class="jxr_javadoccomment">         * Called to indicate, that a new file item has been detected.</em>
<a class="jxr_linenumber" name="L139" href="#L139">139</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L140" href="#L140">140</a>         <strong class="jxr_keyword">void</strong> noteItem() {
<a class="jxr_linenumber" name="L141" href="#L141">141</a>             ++items;
<a class="jxr_linenumber" name="L142" href="#L142">142</a>             notifyListener();
<a class="jxr_linenumber" name="L143" href="#L143">143</a>         }
<a class="jxr_linenumber" name="L144" href="#L144">144</a> 
<a class="jxr_linenumber" name="L145" href="#L145">145</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L146" href="#L146">146</a> <em class="jxr_javadoccomment">         * Called for notifying the listener.</em>
<a class="jxr_linenumber" name="L147" href="#L147">147</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L148" href="#L148">148</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> notifyListener() {
<a class="jxr_linenumber" name="L149" href="#L149">149</a>             <strong class="jxr_keyword">if</strong> (listener != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="L150" href="#L150">150</a>                 listener.update(bytesRead, contentLength, items);
<a class="jxr_linenumber" name="L151" href="#L151">151</a>             }
<a class="jxr_linenumber" name="L152" href="#L152">152</a>         }
<a class="jxr_linenumber" name="L153" href="#L153">153</a> 
<a class="jxr_linenumber" name="L154" href="#L154">154</a>     }
<a class="jxr_linenumber" name="L155" href="#L155">155</a> 
<a class="jxr_linenumber" name="L156" href="#L156">156</a>     <em class="jxr_comment">// ----------------------------------------------------- Manifest constants</em>
<a class="jxr_linenumber" name="L157" href="#L157">157</a> 
<a class="jxr_linenumber" name="L158" href="#L158">158</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L159" href="#L159">159</a> <em class="jxr_javadoccomment">     * The Carriage Return ASCII character value.</em>
<a class="jxr_linenumber" name="L160" href="#L160">160</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L161" href="#L161">161</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> byte CR = 0x0D;
<a class="jxr_linenumber" name="L162" href="#L162">162</a> 
<a class="jxr_linenumber" name="L163" href="#L163">163</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L164" href="#L164">164</a> <em class="jxr_javadoccomment">     * The Line Feed ASCII character value.</em>
<a class="jxr_linenumber" name="L165" href="#L165">165</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L166" href="#L166">166</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> byte LF = 0x0A;
<a class="jxr_linenumber" name="L167" href="#L167">167</a> 
<a class="jxr_linenumber" name="L168" href="#L168">168</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L169" href="#L169">169</a> <em class="jxr_javadoccomment">     * The dash (-) ASCII character value.</em>
<a class="jxr_linenumber" name="L170" href="#L170">170</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L171" href="#L171">171</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> byte DASH = 0x2D;
<a class="jxr_linenumber" name="L172" href="#L172">172</a> 
<a class="jxr_linenumber" name="L173" href="#L173">173</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L174" href="#L174">174</a> <em class="jxr_javadoccomment">     * The maximum length of &lt;code&gt;header-part&lt;/code&gt; that will be</em>
<a class="jxr_linenumber" name="L175" href="#L175">175</a> <em class="jxr_javadoccomment">     * processed (10 kilobytes = 10240 bytes.).</em>
<a class="jxr_linenumber" name="L176" href="#L176">176</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L177" href="#L177">177</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> HEADER_PART_SIZE_MAX = 10240;
<a class="jxr_linenumber" name="L178" href="#L178">178</a> 
<a class="jxr_linenumber" name="L179" href="#L179">179</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L180" href="#L180">180</a> <em class="jxr_javadoccomment">     * The default length of the buffer used for processing a request.</em>
<a class="jxr_linenumber" name="L181" href="#L181">181</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L182" href="#L182">182</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> DEFAULT_BUFSIZE = 4096;
<a class="jxr_linenumber" name="L183" href="#L183">183</a> 
<a class="jxr_linenumber" name="L184" href="#L184">184</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L185" href="#L185">185</a> <em class="jxr_javadoccomment">     * A byte sequence that marks the end of &lt;code&gt;header-part&lt;/code&gt;</em>
<a class="jxr_linenumber" name="L186" href="#L186">186</a> <em class="jxr_javadoccomment">     * (&lt;code&gt;CRLFCRLF&lt;/code&gt;).</em>
<a class="jxr_linenumber" name="L187" href="#L187">187</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L188" href="#L188">188</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> byte[] HEADER_SEPARATOR = {CR, LF, CR, LF};
<a class="jxr_linenumber" name="L189" href="#L189">189</a> 
<a class="jxr_linenumber" name="L190" href="#L190">190</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L191" href="#L191">191</a> <em class="jxr_javadoccomment">     * A byte sequence that that follows a delimiter that will be</em>
<a class="jxr_linenumber" name="L192" href="#L192">192</a> <em class="jxr_javadoccomment">     * followed by an encapsulation (&lt;code&gt;CRLF&lt;/code&gt;).</em>
<a class="jxr_linenumber" name="L193" href="#L193">193</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L194" href="#L194">194</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> byte[] FIELD_SEPARATOR = {CR, LF};
<a class="jxr_linenumber" name="L195" href="#L195">195</a> 
<a class="jxr_linenumber" name="L196" href="#L196">196</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L197" href="#L197">197</a> <em class="jxr_javadoccomment">     * A byte sequence that that follows a delimiter of the last</em>
<a class="jxr_linenumber" name="L198" href="#L198">198</a> <em class="jxr_javadoccomment">     * encapsulation in the stream (&lt;code&gt;--&lt;/code&gt;).</em>
<a class="jxr_linenumber" name="L199" href="#L199">199</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L200" href="#L200">200</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> byte[] STREAM_TERMINATOR = {DASH, DASH};
<a class="jxr_linenumber" name="L201" href="#L201">201</a> 
<a class="jxr_linenumber" name="L202" href="#L202">202</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L203" href="#L203">203</a> <em class="jxr_javadoccomment">     * A byte sequence that precedes a boundary (&lt;code&gt;CRLF--&lt;/code&gt;).</em>
<a class="jxr_linenumber" name="L204" href="#L204">204</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L205" href="#L205">205</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> byte[] BOUNDARY_PREFIX = {CR, LF, DASH, DASH};
<a class="jxr_linenumber" name="L206" href="#L206">206</a> 
<a class="jxr_linenumber" name="L207" href="#L207">207</a>     <em class="jxr_comment">// ----------------------------------------------------------- Data members</em>
<a class="jxr_linenumber" name="L208" href="#L208">208</a> 
<a class="jxr_linenumber" name="L209" href="#L209">209</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L210" href="#L210">210</a> <em class="jxr_javadoccomment">     * The input stream from which data is read.</em>
<a class="jxr_linenumber" name="L211" href="#L211">211</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L212" href="#L212">212</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> InputStream input;
<a class="jxr_linenumber" name="L213" href="#L213">213</a> 
<a class="jxr_linenumber" name="L214" href="#L214">214</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L215" href="#L215">215</a> <em class="jxr_javadoccomment">     * The length of the boundary token plus the leading &lt;code&gt;CRLF--&lt;/code&gt;.</em>
<a class="jxr_linenumber" name="L216" href="#L216">216</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L217" href="#L217">217</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> boundaryLength;
<a class="jxr_linenumber" name="L218" href="#L218">218</a> 
<a class="jxr_linenumber" name="L219" href="#L219">219</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L220" href="#L220">220</a> <em class="jxr_javadoccomment">     * The amount of data, in bytes, that must be kept in the buffer in order</em>
<a class="jxr_linenumber" name="L221" href="#L221">221</a> <em class="jxr_javadoccomment">     * to detect delimiters reliably.</em>
<a class="jxr_linenumber" name="L222" href="#L222">222</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L223" href="#L223">223</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> keepRegion;
<a class="jxr_linenumber" name="L224" href="#L224">224</a> 
<a class="jxr_linenumber" name="L225" href="#L225">225</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L226" href="#L226">226</a> <em class="jxr_javadoccomment">     * The byte sequence that partitions the stream.</em>
<a class="jxr_linenumber" name="L227" href="#L227">227</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L228" href="#L228">228</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> byte[] boundary;
<a class="jxr_linenumber" name="L229" href="#L229">229</a> 
<a class="jxr_linenumber" name="L230" href="#L230">230</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L231" href="#L231">231</a> <em class="jxr_javadoccomment">     * The table for Knuth-Morris-Pratt search algorithm.</em>
<a class="jxr_linenumber" name="L232" href="#L232">232</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L233" href="#L233">233</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong>[] boundaryTable;
<a class="jxr_linenumber" name="L234" href="#L234">234</a> 
<a class="jxr_linenumber" name="L235" href="#L235">235</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L236" href="#L236">236</a> <em class="jxr_javadoccomment">     * The length of the buffer used for processing the request.</em>
<a class="jxr_linenumber" name="L237" href="#L237">237</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L238" href="#L238">238</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> bufSize;
<a class="jxr_linenumber" name="L239" href="#L239">239</a> 
<a class="jxr_linenumber" name="L240" href="#L240">240</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L241" href="#L241">241</a> <em class="jxr_javadoccomment">     * The buffer used for processing the request.</em>
<a class="jxr_linenumber" name="L242" href="#L242">242</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L243" href="#L243">243</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> byte[] buffer;
<a class="jxr_linenumber" name="L244" href="#L244">244</a> 
<a class="jxr_linenumber" name="L245" href="#L245">245</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L246" href="#L246">246</a> <em class="jxr_javadoccomment">     * The index of first valid character in the buffer.</em>
<a class="jxr_linenumber" name="L247" href="#L247">247</a> <em class="jxr_javadoccomment">     * &lt;br&gt;</em>
<a class="jxr_linenumber" name="L248" href="#L248">248</a> <em class="jxr_javadoccomment">     * 0 &lt;= head &lt; bufSize</em>
<a class="jxr_linenumber" name="L249" href="#L249">249</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L250" href="#L250">250</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> head;
<a class="jxr_linenumber" name="L251" href="#L251">251</a> 
<a class="jxr_linenumber" name="L252" href="#L252">252</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L253" href="#L253">253</a> <em class="jxr_javadoccomment">     * The index of last valid character in the buffer + 1.</em>
<a class="jxr_linenumber" name="L254" href="#L254">254</a> <em class="jxr_javadoccomment">     * &lt;br&gt;</em>
<a class="jxr_linenumber" name="L255" href="#L255">255</a> <em class="jxr_javadoccomment">     * 0 &lt;= tail &lt;= bufSize</em>
<a class="jxr_linenumber" name="L256" href="#L256">256</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L257" href="#L257">257</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> tail;
<a class="jxr_linenumber" name="L258" href="#L258">258</a> 
<a class="jxr_linenumber" name="L259" href="#L259">259</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L260" href="#L260">260</a> <em class="jxr_javadoccomment">     * The content encoding to use when reading headers.</em>
<a class="jxr_linenumber" name="L261" href="#L261">261</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L262" href="#L262">262</a>     <strong class="jxr_keyword">private</strong> String headerEncoding;
<a class="jxr_linenumber" name="L263" href="#L263">263</a> 
<a class="jxr_linenumber" name="L264" href="#L264">264</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L265" href="#L265">265</a> <em class="jxr_javadoccomment">     * The progress notifier, if any, or null.</em>
<a class="jxr_linenumber" name="L266" href="#L266">266</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L267" href="#L267">267</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">ProgressNotifier</a> notifier;
<a class="jxr_linenumber" name="L268" href="#L268">268</a> 
<a class="jxr_linenumber" name="L269" href="#L269">269</a>     <em class="jxr_comment">// ----------------------------------------------------------- Constructors</em>
<a class="jxr_linenumber" name="L270" href="#L270">270</a> 
<a class="jxr_linenumber" name="L271" href="#L271">271</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L272" href="#L272">272</a> <em class="jxr_javadoccomment">     * Creates a new instance.</em>
<a class="jxr_linenumber" name="L273" href="#L273">273</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L274" href="#L274">274</a> <em class="jxr_javadoccomment">     * @deprecated 1.2.1 Use {@link #MultipartStream(InputStream, byte[], int,</em>
<a class="jxr_linenumber" name="L275" href="#L275">275</a> <em class="jxr_javadoccomment">     * ProgressNotifier)}</em>
<a class="jxr_linenumber" name="L276" href="#L276">276</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L277" href="#L277">277</a>     @Deprecated
<a class="jxr_linenumber" name="L278" href="#L278">278</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MultipartStream</a>() {
<a class="jxr_linenumber" name="L279" href="#L279">279</a>         <strong class="jxr_keyword">this</strong>(<strong class="jxr_keyword">null</strong>, <strong class="jxr_keyword">null</strong>, <strong class="jxr_keyword">null</strong>);
<a class="jxr_linenumber" name="L280" href="#L280">280</a>     }
<a class="jxr_linenumber" name="L281" href="#L281">281</a> 
<a class="jxr_linenumber" name="L282" href="#L282">282</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L283" href="#L283">283</a> <em class="jxr_javadoccomment">     * &lt;p&gt; Constructs a &lt;code&gt;MultipartStream&lt;/code&gt; with a custom size buffer</em>
<a class="jxr_linenumber" name="L284" href="#L284">284</a> <em class="jxr_javadoccomment">     * and no progress notifier.</em>
<a class="jxr_linenumber" name="L285" href="#L285">285</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L286" href="#L286">286</a> <em class="jxr_javadoccomment">     * &lt;p&gt; Note that the buffer must be at least big enough to contain the</em>
<a class="jxr_linenumber" name="L287" href="#L287">287</a> <em class="jxr_javadoccomment">     * boundary string, plus 4 characters for CR/LF and double dash, plus at</em>
<a class="jxr_linenumber" name="L288" href="#L288">288</a> <em class="jxr_javadoccomment">     * least one byte of data.  Too small a buffer size setting will degrade</em>
<a class="jxr_linenumber" name="L289" href="#L289">289</a> <em class="jxr_javadoccomment">     * performance.</em>
<a class="jxr_linenumber" name="L290" href="#L290">290</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L291" href="#L291">291</a> <em class="jxr_javadoccomment">     * @param input    The &lt;code&gt;InputStream&lt;/code&gt; to serve as a data source.</em>
<a class="jxr_linenumber" name="L292" href="#L292">292</a> <em class="jxr_javadoccomment">     * @param boundary The token used for dividing the stream into</em>
<a class="jxr_linenumber" name="L293" href="#L293">293</a> <em class="jxr_javadoccomment">     *                 &lt;code&gt;encapsulations&lt;/code&gt;.</em>
<a class="jxr_linenumber" name="L294" href="#L294">294</a> <em class="jxr_javadoccomment">     * @param bufSize  The size of the buffer to be used, in bytes.</em>
<a class="jxr_linenumber" name="L295" href="#L295">295</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L296" href="#L296">296</a> <em class="jxr_javadoccomment">     * @deprecated 1.2.1 Use {@link #MultipartStream(InputStream, byte[], int,</em>
<a class="jxr_linenumber" name="L297" href="#L297">297</a> <em class="jxr_javadoccomment">     * ProgressNotifier)}.</em>
<a class="jxr_linenumber" name="L298" href="#L298">298</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L299" href="#L299">299</a>     @Deprecated
<a class="jxr_linenumber" name="L300" href="#L300">300</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MultipartStream</a>(InputStream input, byte[] boundary, <strong class="jxr_keyword">int</strong> bufSize) {
<a class="jxr_linenumber" name="L301" href="#L301">301</a>         <strong class="jxr_keyword">this</strong>(input, boundary, bufSize, <strong class="jxr_keyword">null</strong>);
<a class="jxr_linenumber" name="L302" href="#L302">302</a>     }
<a class="jxr_linenumber" name="L303" href="#L303">303</a> 
<a class="jxr_linenumber" name="L304" href="#L304">304</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L305" href="#L305">305</a> <em class="jxr_javadoccomment">     * &lt;p&gt; Constructs a &lt;code&gt;MultipartStream&lt;/code&gt; with a custom size buffer.</em>
<a class="jxr_linenumber" name="L306" href="#L306">306</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L307" href="#L307">307</a> <em class="jxr_javadoccomment">     * &lt;p&gt; Note that the buffer must be at least big enough to contain the</em>
<a class="jxr_linenumber" name="L308" href="#L308">308</a> <em class="jxr_javadoccomment">     * boundary string, plus 4 characters for CR/LF and double dash, plus at</em>
<a class="jxr_linenumber" name="L309" href="#L309">309</a> <em class="jxr_javadoccomment">     * least one byte of data.  Too small a buffer size setting will degrade</em>
<a class="jxr_linenumber" name="L310" href="#L310">310</a> <em class="jxr_javadoccomment">     * performance.</em>
<a class="jxr_linenumber" name="L311" href="#L311">311</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L312" href="#L312">312</a> <em class="jxr_javadoccomment">     * @param input    The &lt;code&gt;InputStream&lt;/code&gt; to serve as a data source.</em>
<a class="jxr_linenumber" name="L313" href="#L313">313</a> <em class="jxr_javadoccomment">     * @param boundary The token used for dividing the stream into</em>
<a class="jxr_linenumber" name="L314" href="#L314">314</a> <em class="jxr_javadoccomment">     *                 &lt;code&gt;encapsulations&lt;/code&gt;.</em>
<a class="jxr_linenumber" name="L315" href="#L315">315</a> <em class="jxr_javadoccomment">     * @param bufSize  The size of the buffer to be used, in bytes.</em>
<a class="jxr_linenumber" name="L316" href="#L316">316</a> <em class="jxr_javadoccomment">     * @param pNotifier The notifier, which is used for calling the</em>
<a class="jxr_linenumber" name="L317" href="#L317">317</a> <em class="jxr_javadoccomment">     *                  progress listener, if any.</em>
<a class="jxr_linenumber" name="L318" href="#L318">318</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L319" href="#L319">319</a> <em class="jxr_javadoccomment">     * @throws IllegalArgumentException If the buffer size is too small</em>
<a class="jxr_linenumber" name="L320" href="#L320">320</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L321" href="#L321">321</a> <em class="jxr_javadoccomment">     * @since 1.3.1</em>
<a class="jxr_linenumber" name="L322" href="#L322">322</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L323" href="#L323">323</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MultipartStream</a>(InputStream input,
<a class="jxr_linenumber" name="L324" href="#L324">324</a>             byte[] boundary,
<a class="jxr_linenumber" name="L325" href="#L325">325</a>             <strong class="jxr_keyword">int</strong> bufSize,
<a class="jxr_linenumber" name="L326" href="#L326">326</a>             <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">ProgressNotifier</a> pNotifier) {
<a class="jxr_linenumber" name="L327" href="#L327">327</a> 
<a class="jxr_linenumber" name="L328" href="#L328">328</a>         <strong class="jxr_keyword">if</strong> (boundary == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="L329" href="#L329">329</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"boundary may not be null"</span>);
<a class="jxr_linenumber" name="L330" href="#L330">330</a>         }
<a class="jxr_linenumber" name="L331" href="#L331">331</a>         <em class="jxr_comment">// We prepend CR/LF to the boundary to chop trailing CR/LF from</em>
<a class="jxr_linenumber" name="L332" href="#L332">332</a>         <em class="jxr_comment">// body-data tokens.</em>
<a class="jxr_linenumber" name="L333" href="#L333">333</a>         <strong class="jxr_keyword">this</strong>.boundaryLength = boundary.length + BOUNDARY_PREFIX.length;
<a class="jxr_linenumber" name="L334" href="#L334">334</a>         <strong class="jxr_keyword">if</strong> (bufSize &lt; <strong class="jxr_keyword">this</strong>.boundaryLength + 1) {
<a class="jxr_linenumber" name="L335" href="#L335">335</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(
<a class="jxr_linenumber" name="L336" href="#L336">336</a>                     <span class="jxr_string">"The buffer size specified for the MultipartStream is too small"</span>);
<a class="jxr_linenumber" name="L337" href="#L337">337</a>         }
<a class="jxr_linenumber" name="L338" href="#L338">338</a> 
<a class="jxr_linenumber" name="L339" href="#L339">339</a>         <strong class="jxr_keyword">this</strong>.input = input;
<a class="jxr_linenumber" name="L340" href="#L340">340</a>         <strong class="jxr_keyword">this</strong>.bufSize = Math.max(bufSize, boundaryLength * 2);
<a class="jxr_linenumber" name="L341" href="#L341">341</a>         <strong class="jxr_keyword">this</strong>.buffer = <strong class="jxr_keyword">new</strong> byte[<strong class="jxr_keyword">this</strong>.bufSize];
<a class="jxr_linenumber" name="L342" href="#L342">342</a>         <strong class="jxr_keyword">this</strong>.notifier = pNotifier;
<a class="jxr_linenumber" name="L343" href="#L343">343</a> 
<a class="jxr_linenumber" name="L344" href="#L344">344</a>         <strong class="jxr_keyword">this</strong>.boundary = <strong class="jxr_keyword">new</strong> byte[<strong class="jxr_keyword">this</strong>.boundaryLength];
<a class="jxr_linenumber" name="L345" href="#L345">345</a>         <strong class="jxr_keyword">this</strong>.boundaryTable = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">int</strong>[<strong class="jxr_keyword">this</strong>.boundaryLength + 1];
<a class="jxr_linenumber" name="L346" href="#L346">346</a>         <strong class="jxr_keyword">this</strong>.keepRegion = <strong class="jxr_keyword">this</strong>.boundary.length;
<a class="jxr_linenumber" name="L347" href="#L347">347</a> 
<a class="jxr_linenumber" name="L348" href="#L348">348</a>         System.arraycopy(BOUNDARY_PREFIX, 0, <strong class="jxr_keyword">this</strong>.boundary, 0,
<a class="jxr_linenumber" name="L349" href="#L349">349</a>                 BOUNDARY_PREFIX.length);
<a class="jxr_linenumber" name="L350" href="#L350">350</a>         System.arraycopy(boundary, 0, <strong class="jxr_keyword">this</strong>.boundary, BOUNDARY_PREFIX.length,
<a class="jxr_linenumber" name="L351" href="#L351">351</a>                 boundary.length);
<a class="jxr_linenumber" name="L352" href="#L352">352</a>         computeBoundaryTable();
<a class="jxr_linenumber" name="L353" href="#L353">353</a> 
<a class="jxr_linenumber" name="L354" href="#L354">354</a>         head = 0;
<a class="jxr_linenumber" name="L355" href="#L355">355</a>         tail = 0;
<a class="jxr_linenumber" name="L356" href="#L356">356</a>     }
<a class="jxr_linenumber" name="L357" href="#L357">357</a> 
<a class="jxr_linenumber" name="L358" href="#L358">358</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L359" href="#L359">359</a> <em class="jxr_javadoccomment">     * &lt;p&gt; Constructs a &lt;code&gt;MultipartStream&lt;/code&gt; with a default size buffer.</em>
<a class="jxr_linenumber" name="L360" href="#L360">360</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L361" href="#L361">361</a> <em class="jxr_javadoccomment">     * @param input    The &lt;code&gt;InputStream&lt;/code&gt; to serve as a data source.</em>
<a class="jxr_linenumber" name="L362" href="#L362">362</a> <em class="jxr_javadoccomment">     * @param boundary The token used for dividing the stream into</em>
<a class="jxr_linenumber" name="L363" href="#L363">363</a> <em class="jxr_javadoccomment">     *                 &lt;code&gt;encapsulations&lt;/code&gt;.</em>
<a class="jxr_linenumber" name="L364" href="#L364">364</a> <em class="jxr_javadoccomment">     * @param pNotifier An object for calling the progress listener, if any.</em>
<a class="jxr_linenumber" name="L365" href="#L365">365</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L366" href="#L366">366</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L367" href="#L367">367</a> <em class="jxr_javadoccomment">     * @see #MultipartStream(InputStream, byte[], int, ProgressNotifier)</em>
<a class="jxr_linenumber" name="L368" href="#L368">368</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L369" href="#L369">369</a>     <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MultipartStream</a>(InputStream input,
<a class="jxr_linenumber" name="L370" href="#L370">370</a>             byte[] boundary,
<a class="jxr_linenumber" name="L371" href="#L371">371</a>             <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">ProgressNotifier</a> pNotifier) {
<a class="jxr_linenumber" name="L372" href="#L372">372</a>         <strong class="jxr_keyword">this</strong>(input, boundary, DEFAULT_BUFSIZE, pNotifier);
<a class="jxr_linenumber" name="L373" href="#L373">373</a>     }
<a class="jxr_linenumber" name="L374" href="#L374">374</a> 
<a class="jxr_linenumber" name="L375" href="#L375">375</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L376" href="#L376">376</a> <em class="jxr_javadoccomment">     * &lt;p&gt; Constructs a &lt;code&gt;MultipartStream&lt;/code&gt; with a default size buffer.</em>
<a class="jxr_linenumber" name="L377" href="#L377">377</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L378" href="#L378">378</a> <em class="jxr_javadoccomment">     * @param input    The &lt;code&gt;InputStream&lt;/code&gt; to serve as a data source.</em>
<a class="jxr_linenumber" name="L379" href="#L379">379</a> <em class="jxr_javadoccomment">     * @param boundary The token used for dividing the stream into</em>
<a class="jxr_linenumber" name="L380" href="#L380">380</a> <em class="jxr_javadoccomment">     *                 &lt;code&gt;encapsulations&lt;/code&gt;.</em>
<a class="jxr_linenumber" name="L381" href="#L381">381</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L382" href="#L382">382</a> <em class="jxr_javadoccomment">     * @deprecated 1.2.1 Use {@link #MultipartStream(InputStream, byte[], int,</em>
<a class="jxr_linenumber" name="L383" href="#L383">383</a> <em class="jxr_javadoccomment">     *  ProgressNotifier)}.</em>
<a class="jxr_linenumber" name="L384" href="#L384">384</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L385" href="#L385">385</a>     @Deprecated
<a class="jxr_linenumber" name="L386" href="#L386">386</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MultipartStream</a>(InputStream input,
<a class="jxr_linenumber" name="L387" href="#L387">387</a>             byte[] boundary) {
<a class="jxr_linenumber" name="L388" href="#L388">388</a>         <strong class="jxr_keyword">this</strong>(input, boundary, DEFAULT_BUFSIZE, <strong class="jxr_keyword">null</strong>);
<a class="jxr_linenumber" name="L389" href="#L389">389</a>     }
<a class="jxr_linenumber" name="L390" href="#L390">390</a> 
<a class="jxr_linenumber" name="L391" href="#L391">391</a>     <em class="jxr_comment">// --------------------------------------------------------- Public methods</em>
<a class="jxr_linenumber" name="L392" href="#L392">392</a> 
<a class="jxr_linenumber" name="L393" href="#L393">393</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L394" href="#L394">394</a> <em class="jxr_javadoccomment">     * Retrieves the character encoding used when reading the headers of an</em>
<a class="jxr_linenumber" name="L395" href="#L395">395</a> <em class="jxr_javadoccomment">     * individual part. When not specified, or &lt;code&gt;null&lt;/code&gt;, the platform</em>
<a class="jxr_linenumber" name="L396" href="#L396">396</a> <em class="jxr_javadoccomment">     * default encoding is used.</em>
<a class="jxr_linenumber" name="L397" href="#L397">397</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L398" href="#L398">398</a> <em class="jxr_javadoccomment">     * @return The encoding used to read part headers.</em>
<a class="jxr_linenumber" name="L399" href="#L399">399</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L400" href="#L400">400</a>     <strong class="jxr_keyword">public</strong> String getHeaderEncoding() {
<a class="jxr_linenumber" name="L401" href="#L401">401</a>         <strong class="jxr_keyword">return</strong> headerEncoding;
<a class="jxr_linenumber" name="L402" href="#L402">402</a>     }
<a class="jxr_linenumber" name="L403" href="#L403">403</a> 
<a class="jxr_linenumber" name="L404" href="#L404">404</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L405" href="#L405">405</a> <em class="jxr_javadoccomment">     * Specifies the character encoding to be used when reading the headers of</em>
<a class="jxr_linenumber" name="L406" href="#L406">406</a> <em class="jxr_javadoccomment">     * individual parts. When not specified, or &lt;code&gt;null&lt;/code&gt;, the platform</em>
<a class="jxr_linenumber" name="L407" href="#L407">407</a> <em class="jxr_javadoccomment">     * default encoding is used.</em>
<a class="jxr_linenumber" name="L408" href="#L408">408</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L409" href="#L409">409</a> <em class="jxr_javadoccomment">     * @param encoding The encoding used to read part headers.</em>
<a class="jxr_linenumber" name="L410" href="#L410">410</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L411" href="#L411">411</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setHeaderEncoding(String encoding) {
<a class="jxr_linenumber" name="L412" href="#L412">412</a>         headerEncoding = encoding;
<a class="jxr_linenumber" name="L413" href="#L413">413</a>     }
<a class="jxr_linenumber" name="L414" href="#L414">414</a> 
<a class="jxr_linenumber" name="L415" href="#L415">415</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L416" href="#L416">416</a> <em class="jxr_javadoccomment">     * Reads a byte from the &lt;code&gt;buffer&lt;/code&gt;, and refills it as</em>
<a class="jxr_linenumber" name="L417" href="#L417">417</a> <em class="jxr_javadoccomment">     * necessary.</em>
<a class="jxr_linenumber" name="L418" href="#L418">418</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L419" href="#L419">419</a> <em class="jxr_javadoccomment">     * @return The next byte from the input stream.</em>
<a class="jxr_linenumber" name="L420" href="#L420">420</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L421" href="#L421">421</a> <em class="jxr_javadoccomment">     * @throws IOException if there is no more data available.</em>
<a class="jxr_linenumber" name="L422" href="#L422">422</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L423" href="#L423">423</a>     <strong class="jxr_keyword">public</strong> byte readByte() <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="L424" href="#L424">424</a>         <em class="jxr_comment">// Buffer depleted ?</em>
<a class="jxr_linenumber" name="L425" href="#L425">425</a>         <strong class="jxr_keyword">if</strong> (head == tail) {
<a class="jxr_linenumber" name="L426" href="#L426">426</a>             head = 0;
<a class="jxr_linenumber" name="L427" href="#L427">427</a>             <em class="jxr_comment">// Refill.</em>
<a class="jxr_linenumber" name="L428" href="#L428">428</a>             tail = input.read(buffer, head, bufSize);
<a class="jxr_linenumber" name="L429" href="#L429">429</a>             <strong class="jxr_keyword">if</strong> (tail == -1) {
<a class="jxr_linenumber" name="L430" href="#L430">430</a>                 <em class="jxr_comment">// No more data available.</em>
<a class="jxr_linenumber" name="L431" href="#L431">431</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IOException(<span class="jxr_string">"No more data is available"</span>);
<a class="jxr_linenumber" name="L432" href="#L432">432</a>             }
<a class="jxr_linenumber" name="L433" href="#L433">433</a>             <strong class="jxr_keyword">if</strong> (notifier != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="L434" href="#L434">434</a>                 notifier.noteBytesRead(tail);
<a class="jxr_linenumber" name="L435" href="#L435">435</a>             }
<a class="jxr_linenumber" name="L436" href="#L436">436</a>         }
<a class="jxr_linenumber" name="L437" href="#L437">437</a>         <strong class="jxr_keyword">return</strong> buffer[head++];
<a class="jxr_linenumber" name="L438" href="#L438">438</a>     }
<a class="jxr_linenumber" name="L439" href="#L439">439</a> 
<a class="jxr_linenumber" name="L440" href="#L440">440</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L441" href="#L441">441</a> <em class="jxr_javadoccomment">     * Skips a &lt;code&gt;boundary&lt;/code&gt; token, and checks whether more</em>
<a class="jxr_linenumber" name="L442" href="#L442">442</a> <em class="jxr_javadoccomment">     * &lt;code&gt;encapsulations&lt;/code&gt; are contained in the stream.</em>
<a class="jxr_linenumber" name="L443" href="#L443">443</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L444" href="#L444">444</a> <em class="jxr_javadoccomment">     * @return &lt;code&gt;true&lt;/code&gt; if there are more encapsulations in</em>
<a class="jxr_linenumber" name="L445" href="#L445">445</a> <em class="jxr_javadoccomment">     *         this stream; &lt;code&gt;false&lt;/code&gt; otherwise.</em>
<a class="jxr_linenumber" name="L446" href="#L446">446</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L447" href="#L447">447</a> <em class="jxr_javadoccomment">     * @throws FileUploadIOException if the bytes read from the stream exceeded the size limits</em>
<a class="jxr_linenumber" name="L448" href="#L448">448</a> <em class="jxr_javadoccomment">     * @throws MalformedStreamException if the stream ends unexpectedly or</em>
<a class="jxr_linenumber" name="L449" href="#L449">449</a> <em class="jxr_javadoccomment">     *                                  fails to follow required syntax.</em>
<a class="jxr_linenumber" name="L450" href="#L450">450</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L451" href="#L451">451</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> readBoundary()
<a class="jxr_linenumber" name="L452" href="#L452">452</a>             <strong class="jxr_keyword">throws</strong> FileUploadIOException, <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MalformedStreamException</a> {
<a class="jxr_linenumber" name="L453" href="#L453">453</a>         byte[] marker = <strong class="jxr_keyword">new</strong> byte[2];
<a class="jxr_linenumber" name="L454" href="#L454">454</a>         <strong class="jxr_keyword">boolean</strong> nextChunk = false;
<a class="jxr_linenumber" name="L455" href="#L455">455</a> 
<a class="jxr_linenumber" name="L456" href="#L456">456</a>         head += boundaryLength;
<a class="jxr_linenumber" name="L457" href="#L457">457</a>         <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="L458" href="#L458">458</a>             marker[0] = readByte();
<a class="jxr_linenumber" name="L459" href="#L459">459</a>             <strong class="jxr_keyword">if</strong> (marker[0] == LF) {
<a class="jxr_linenumber" name="L460" href="#L460">460</a>                 <em class="jxr_comment">// Work around IE5 Mac bug with input type=image.</em>
<a class="jxr_linenumber" name="L461" href="#L461">461</a>                 <em class="jxr_comment">// Because the boundary delimiter, not including the trailing</em>
<a class="jxr_linenumber" name="L462" href="#L462">462</a>                 <em class="jxr_comment">// CRLF, must not appear within any file (RFC 2046, section</em>
<a class="jxr_linenumber" name="L463" href="#L463">463</a>                 <em class="jxr_comment">// 5.1.1), we know the missing CR is due to a buggy browser</em>
<a class="jxr_linenumber" name="L464" href="#L464">464</a>                 <em class="jxr_comment">// rather than a file containing something similar to a</em>
<a class="jxr_linenumber" name="L465" href="#L465">465</a>                 <em class="jxr_comment">// boundary.</em>
<a class="jxr_linenumber" name="L466" href="#L466">466</a>                 <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="L467" href="#L467">467</a>             }
<a class="jxr_linenumber" name="L468" href="#L468">468</a> 
<a class="jxr_linenumber" name="L469" href="#L469">469</a>             marker[1] = readByte();
<a class="jxr_linenumber" name="L470" href="#L470">470</a>             <strong class="jxr_keyword">if</strong> (arrayequals(marker, STREAM_TERMINATOR, 2)) {
<a class="jxr_linenumber" name="L471" href="#L471">471</a>                 nextChunk = false;
<a class="jxr_linenumber" name="L472" href="#L472">472</a>             } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (arrayequals(marker, FIELD_SEPARATOR, 2)) {
<a class="jxr_linenumber" name="L473" href="#L473">473</a>                 nextChunk = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="L474" href="#L474">474</a>             } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="L475" href="#L475">475</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MalformedStreamException</a>(
<a class="jxr_linenumber" name="L476" href="#L476">476</a>                 <span class="jxr_string">"Unexpected characters follow a boundary"</span>);
<a class="jxr_linenumber" name="L477" href="#L477">477</a>             }
<a class="jxr_linenumber" name="L478" href="#L478">478</a>         } <strong class="jxr_keyword">catch</strong> (FileUploadIOException e) {
<a class="jxr_linenumber" name="L479" href="#L479">479</a>             <em class="jxr_comment">// wraps a SizeException, re-throw as it will be unwrapped later</em>
<a class="jxr_linenumber" name="L480" href="#L480">480</a>             <strong class="jxr_keyword">throw</strong> e;
<a class="jxr_linenumber" name="L481" href="#L481">481</a>         } <strong class="jxr_keyword">catch</strong> (IOException e) {
<a class="jxr_linenumber" name="L482" href="#L482">482</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MalformedStreamException</a>(<span class="jxr_string">"Stream ended unexpectedly"</span>);
<a class="jxr_linenumber" name="L483" href="#L483">483</a>         }
<a class="jxr_linenumber" name="L484" href="#L484">484</a>         <strong class="jxr_keyword">return</strong> nextChunk;
<a class="jxr_linenumber" name="L485" href="#L485">485</a>     }
<a class="jxr_linenumber" name="L486" href="#L486">486</a> 
<a class="jxr_linenumber" name="L487" href="#L487">487</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L488" href="#L488">488</a> <em class="jxr_javadoccomment">     * &lt;p&gt;Changes the boundary token used for partitioning the stream.</em>
<a class="jxr_linenumber" name="L489" href="#L489">489</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L490" href="#L490">490</a> <em class="jxr_javadoccomment">     * &lt;p&gt;This method allows single pass processing of nested multipart</em>
<a class="jxr_linenumber" name="L491" href="#L491">491</a> <em class="jxr_javadoccomment">     * streams.</em>
<a class="jxr_linenumber" name="L492" href="#L492">492</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L493" href="#L493">493</a> <em class="jxr_javadoccomment">     * &lt;p&gt;The boundary token of the nested stream is &lt;code&gt;required&lt;/code&gt;</em>
<a class="jxr_linenumber" name="L494" href="#L494">494</a> <em class="jxr_javadoccomment">     * to be of the same length as the boundary token in parent stream.</em>
<a class="jxr_linenumber" name="L495" href="#L495">495</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L496" href="#L496">496</a> <em class="jxr_javadoccomment">     * &lt;p&gt;Restoring the parent stream boundary token after processing of a</em>
<a class="jxr_linenumber" name="L497" href="#L497">497</a> <em class="jxr_javadoccomment">     * nested stream is left to the application.</em>
<a class="jxr_linenumber" name="L498" href="#L498">498</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L499" href="#L499">499</a> <em class="jxr_javadoccomment">     * @param boundary The boundary to be used for parsing of the nested</em>
<a class="jxr_linenumber" name="L500" href="#L500">500</a> <em class="jxr_javadoccomment">     *                 stream.</em>
<a class="jxr_linenumber" name="L501" href="#L501">501</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L502" href="#L502">502</a> <em class="jxr_javadoccomment">     * @throws IllegalBoundaryException if the &lt;code&gt;boundary&lt;/code&gt;</em>
<a class="jxr_linenumber" name="L503" href="#L503">503</a> <em class="jxr_javadoccomment">     *                                  has a different length than the one</em>
<a class="jxr_linenumber" name="L504" href="#L504">504</a> <em class="jxr_javadoccomment">     *                                  being currently parsed.</em>
<a class="jxr_linenumber" name="L505" href="#L505">505</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L506" href="#L506">506</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setBoundary(byte[] boundary)
<a class="jxr_linenumber" name="L507" href="#L507">507</a>             <strong class="jxr_keyword">throws</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">IllegalBoundaryException</a> {
<a class="jxr_linenumber" name="L508" href="#L508">508</a>         <strong class="jxr_keyword">if</strong> (boundary.length != boundaryLength - BOUNDARY_PREFIX.length) {
<a class="jxr_linenumber" name="L509" href="#L509">509</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">IllegalBoundaryException</a>(
<a class="jxr_linenumber" name="L510" href="#L510">510</a>             <span class="jxr_string">"The length of a boundary token cannot be changed"</span>);
<a class="jxr_linenumber" name="L511" href="#L511">511</a>         }
<a class="jxr_linenumber" name="L512" href="#L512">512</a>         System.arraycopy(boundary, 0, <strong class="jxr_keyword">this</strong>.boundary, BOUNDARY_PREFIX.length,
<a class="jxr_linenumber" name="L513" href="#L513">513</a>                 boundary.length);
<a class="jxr_linenumber" name="L514" href="#L514">514</a>         computeBoundaryTable();
<a class="jxr_linenumber" name="L515" href="#L515">515</a>     }
<a class="jxr_linenumber" name="L516" href="#L516">516</a> 
<a class="jxr_linenumber" name="L517" href="#L517">517</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L518" href="#L518">518</a> <em class="jxr_javadoccomment">     * Compute the table used for Knuth-Morris-Pratt search algorithm.</em>
<a class="jxr_linenumber" name="L519" href="#L519">519</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L520" href="#L520">520</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> computeBoundaryTable() {
<a class="jxr_linenumber" name="L521" href="#L521">521</a>         <strong class="jxr_keyword">int</strong> position = 2;
<a class="jxr_linenumber" name="L522" href="#L522">522</a>         <strong class="jxr_keyword">int</strong> candidate = 0;
<a class="jxr_linenumber" name="L523" href="#L523">523</a> 
<a class="jxr_linenumber" name="L524" href="#L524">524</a>         boundaryTable[0] = -1;
<a class="jxr_linenumber" name="L525" href="#L525">525</a>         boundaryTable[1] = 0;
<a class="jxr_linenumber" name="L526" href="#L526">526</a> 
<a class="jxr_linenumber" name="L527" href="#L527">527</a>         <strong class="jxr_keyword">while</strong> (position &lt;= boundaryLength) {
<a class="jxr_linenumber" name="L528" href="#L528">528</a>             <strong class="jxr_keyword">if</strong> (boundary[position - 1] == boundary[candidate]) {
<a class="jxr_linenumber" name="L529" href="#L529">529</a>                 boundaryTable[position] = candidate + 1;
<a class="jxr_linenumber" name="L530" href="#L530">530</a>                 candidate++;
<a class="jxr_linenumber" name="L531" href="#L531">531</a>                 position++;
<a class="jxr_linenumber" name="L532" href="#L532">532</a>             } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (candidate &gt; 0) {
<a class="jxr_linenumber" name="L533" href="#L533">533</a>                 candidate = boundaryTable[candidate];
<a class="jxr_linenumber" name="L534" href="#L534">534</a>             } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="L535" href="#L535">535</a>                 boundaryTable[position] = 0;
<a class="jxr_linenumber" name="L536" href="#L536">536</a>                 position++;
<a class="jxr_linenumber" name="L537" href="#L537">537</a>             }
<a class="jxr_linenumber" name="L538" href="#L538">538</a>         }
<a class="jxr_linenumber" name="L539" href="#L539">539</a>     }
<a class="jxr_linenumber" name="L540" href="#L540">540</a> 
<a class="jxr_linenumber" name="L541" href="#L541">541</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L542" href="#L542">542</a> <em class="jxr_javadoccomment">     * &lt;p&gt;Reads the &lt;code&gt;header-part&lt;/code&gt; of the current</em>
<a class="jxr_linenumber" name="L543" href="#L543">543</a> <em class="jxr_javadoccomment">     * &lt;code&gt;encapsulation&lt;/code&gt;.</em>
<a class="jxr_linenumber" name="L544" href="#L544">544</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L545" href="#L545">545</a> <em class="jxr_javadoccomment">     * &lt;p&gt;Headers are returned verbatim to the input stream, including the</em>
<a class="jxr_linenumber" name="L546" href="#L546">546</a> <em class="jxr_javadoccomment">     * trailing &lt;code&gt;CRLF&lt;/code&gt; marker. Parsing is left to the</em>
<a class="jxr_linenumber" name="L547" href="#L547">547</a> <em class="jxr_javadoccomment">     * application.</em>
<a class="jxr_linenumber" name="L548" href="#L548">548</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L549" href="#L549">549</a> <em class="jxr_javadoccomment">     * &lt;p&gt;&lt;strong&gt;TODO&lt;/strong&gt; allow limiting maximum header size to</em>
<a class="jxr_linenumber" name="L550" href="#L550">550</a> <em class="jxr_javadoccomment">     * protect against abuse.</em>
<a class="jxr_linenumber" name="L551" href="#L551">551</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L552" href="#L552">552</a> <em class="jxr_javadoccomment">     * @return The &lt;code&gt;header-part&lt;/code&gt; of the current encapsulation.</em>
<a class="jxr_linenumber" name="L553" href="#L553">553</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L554" href="#L554">554</a> <em class="jxr_javadoccomment">     * @throws FileUploadIOException if the bytes read from the stream exceeded the size limits.</em>
<a class="jxr_linenumber" name="L555" href="#L555">555</a> <em class="jxr_javadoccomment">     * @throws MalformedStreamException if the stream ends unexpectedly.</em>
<a class="jxr_linenumber" name="L556" href="#L556">556</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L557" href="#L557">557</a>     <strong class="jxr_keyword">public</strong> String readHeaders() <strong class="jxr_keyword">throws</strong> FileUploadIOException, MalformedStreamException {
<a class="jxr_linenumber" name="L558" href="#L558">558</a>         <strong class="jxr_keyword">int</strong> i = 0;
<a class="jxr_linenumber" name="L559" href="#L559">559</a>         byte b;
<a class="jxr_linenumber" name="L560" href="#L560">560</a>         <em class="jxr_comment">// to support multi-byte characters</em>
<a class="jxr_linenumber" name="L561" href="#L561">561</a>         ByteArrayOutputStream baos = <strong class="jxr_keyword">new</strong> ByteArrayOutputStream();
<a class="jxr_linenumber" name="L562" href="#L562">562</a>         <strong class="jxr_keyword">int</strong> size = 0;
<a class="jxr_linenumber" name="L563" href="#L563">563</a>         <strong class="jxr_keyword">while</strong> (i &lt; HEADER_SEPARATOR.length) {
<a class="jxr_linenumber" name="L564" href="#L564">564</a>             <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="L565" href="#L565">565</a>                 b = readByte();
<a class="jxr_linenumber" name="L566" href="#L566">566</a>             } <strong class="jxr_keyword">catch</strong> (FileUploadIOException e) {
<a class="jxr_linenumber" name="L567" href="#L567">567</a>                 <em class="jxr_comment">// wraps a SizeException, re-throw as it will be unwrapped later</em>
<a class="jxr_linenumber" name="L568" href="#L568">568</a>                 <strong class="jxr_keyword">throw</strong> e;
<a class="jxr_linenumber" name="L569" href="#L569">569</a>             } <strong class="jxr_keyword">catch</strong> (IOException e) {
<a class="jxr_linenumber" name="L570" href="#L570">570</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MalformedStreamException</a>(<span class="jxr_string">"Stream ended unexpectedly"</span>);
<a class="jxr_linenumber" name="L571" href="#L571">571</a>             }
<a class="jxr_linenumber" name="L572" href="#L572">572</a>             <strong class="jxr_keyword">if</strong> (++size &gt; HEADER_PART_SIZE_MAX) {
<a class="jxr_linenumber" name="L573" href="#L573">573</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MalformedStreamException</a>(
<a class="jxr_linenumber" name="L574" href="#L574">574</a>                         format(<span class="jxr_string">"Header section has more than %s bytes (maybe it is not properly terminated)"</span>,
<a class="jxr_linenumber" name="L575" href="#L575">575</a>                                Integer.valueOf(HEADER_PART_SIZE_MAX)));
<a class="jxr_linenumber" name="L576" href="#L576">576</a>             }
<a class="jxr_linenumber" name="L577" href="#L577">577</a>             <strong class="jxr_keyword">if</strong> (b == HEADER_SEPARATOR[i]) {
<a class="jxr_linenumber" name="L578" href="#L578">578</a>                 i++;
<a class="jxr_linenumber" name="L579" href="#L579">579</a>             } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="L580" href="#L580">580</a>                 i = 0;
<a class="jxr_linenumber" name="L581" href="#L581">581</a>             }
<a class="jxr_linenumber" name="L582" href="#L582">582</a>             baos.write(b);
<a class="jxr_linenumber" name="L583" href="#L583">583</a>         }
<a class="jxr_linenumber" name="L584" href="#L584">584</a> 
<a class="jxr_linenumber" name="L585" href="#L585">585</a>         String headers = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="L586" href="#L586">586</a>         <strong class="jxr_keyword">if</strong> (headerEncoding != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="L587" href="#L587">587</a>             <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="L588" href="#L588">588</a>                 headers = baos.toString(headerEncoding);
<a class="jxr_linenumber" name="L589" href="#L589">589</a>             } <strong class="jxr_keyword">catch</strong> (UnsupportedEncodingException e) {
<a class="jxr_linenumber" name="L590" href="#L590">590</a>                 <em class="jxr_comment">// Fall back to platform default if specified encoding is not</em>
<a class="jxr_linenumber" name="L591" href="#L591">591</a>                 <em class="jxr_comment">// supported.</em>
<a class="jxr_linenumber" name="L592" href="#L592">592</a>                 headers = baos.toString();
<a class="jxr_linenumber" name="L593" href="#L593">593</a>             }
<a class="jxr_linenumber" name="L594" href="#L594">594</a>         } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="L595" href="#L595">595</a>             headers = baos.toString();
<a class="jxr_linenumber" name="L596" href="#L596">596</a>         }
<a class="jxr_linenumber" name="L597" href="#L597">597</a> 
<a class="jxr_linenumber" name="L598" href="#L598">598</a>         <strong class="jxr_keyword">return</strong> headers;
<a class="jxr_linenumber" name="L599" href="#L599">599</a>     }
<a class="jxr_linenumber" name="L600" href="#L600">600</a> 
<a class="jxr_linenumber" name="L601" href="#L601">601</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L602" href="#L602">602</a> <em class="jxr_javadoccomment">     * &lt;p&gt;Reads &lt;code&gt;body-data&lt;/code&gt; from the current</em>
<a class="jxr_linenumber" name="L603" href="#L603">603</a> <em class="jxr_javadoccomment">     * &lt;code&gt;encapsulation&lt;/code&gt; and writes its contents into the</em>
<a class="jxr_linenumber" name="L604" href="#L604">604</a> <em class="jxr_javadoccomment">     * output &lt;code&gt;Stream&lt;/code&gt;.</em>
<a class="jxr_linenumber" name="L605" href="#L605">605</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L606" href="#L606">606</a> <em class="jxr_javadoccomment">     * &lt;p&gt;Arbitrary large amounts of data can be processed by this</em>
<a class="jxr_linenumber" name="L607" href="#L607">607</a> <em class="jxr_javadoccomment">     * method using a constant size buffer. (see {@link</em>
<a class="jxr_linenumber" name="L608" href="#L608">608</a> <em class="jxr_javadoccomment">     * #MultipartStream(InputStream,byte[],int,</em>
<a class="jxr_linenumber" name="L609" href="#L609">609</a> <em class="jxr_javadoccomment">     *   MultipartStream.ProgressNotifier) constructor}).</em>
<a class="jxr_linenumber" name="L610" href="#L610">610</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L611" href="#L611">611</a> <em class="jxr_javadoccomment">     * @param output The &lt;code&gt;Stream&lt;/code&gt; to write data into. May</em>
<a class="jxr_linenumber" name="L612" href="#L612">612</a> <em class="jxr_javadoccomment">     *               be null, in which case this method is equivalent</em>
<a class="jxr_linenumber" name="L613" href="#L613">613</a> <em class="jxr_javadoccomment">     *               to {@link #discardBodyData()}.</em>
<a class="jxr_linenumber" name="L614" href="#L614">614</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L615" href="#L615">615</a> <em class="jxr_javadoccomment">     * @return the amount of data written.</em>
<a class="jxr_linenumber" name="L616" href="#L616">616</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L617" href="#L617">617</a> <em class="jxr_javadoccomment">     * @throws MalformedStreamException if the stream ends unexpectedly.</em>
<a class="jxr_linenumber" name="L618" href="#L618">618</a> <em class="jxr_javadoccomment">     * @throws IOException              if an i/o error occurs.</em>
<a class="jxr_linenumber" name="L619" href="#L619">619</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L620" href="#L620">620</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> readBodyData(OutputStream output)
<a class="jxr_linenumber" name="L621" href="#L621">621</a>             <strong class="jxr_keyword">throws</strong> MalformedStreamException, IOException {
<a class="jxr_linenumber" name="L622" href="#L622">622</a>         <strong class="jxr_keyword">return</strong> (<strong class="jxr_keyword">int</strong>) Streams.copy(newInputStream(), output, false); <em class="jxr_comment">// N.B. Streams.copy closes the input stream</em>
<a class="jxr_linenumber" name="L623" href="#L623">623</a>     }
<a class="jxr_linenumber" name="L624" href="#L624">624</a> 
<a class="jxr_linenumber" name="L625" href="#L625">625</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L626" href="#L626">626</a> <em class="jxr_javadoccomment">     * Creates a new {@link ItemInputStream}.</em>
<a class="jxr_linenumber" name="L627" href="#L627">627</a> <em class="jxr_javadoccomment">     * @return A new instance of {@link ItemInputStream}.</em>
<a class="jxr_linenumber" name="L628" href="#L628">628</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L629" href="#L629">629</a>     <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">ItemInputStream</a> newInputStream() {
<a class="jxr_linenumber" name="L630" href="#L630">630</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">ItemInputStream</a>();
<a class="jxr_linenumber" name="L631" href="#L631">631</a>     }
<a class="jxr_linenumber" name="L632" href="#L632">632</a> 
<a class="jxr_linenumber" name="L633" href="#L633">633</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L634" href="#L634">634</a> <em class="jxr_javadoccomment">     * &lt;p&gt; Reads &lt;code&gt;body-data&lt;/code&gt; from the current</em>
<a class="jxr_linenumber" name="L635" href="#L635">635</a> <em class="jxr_javadoccomment">     * &lt;code&gt;encapsulation&lt;/code&gt; and discards it.</em>
<a class="jxr_linenumber" name="L636" href="#L636">636</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L637" href="#L637">637</a> <em class="jxr_javadoccomment">     * &lt;p&gt;Use this method to skip encapsulations you don't need or don't</em>
<a class="jxr_linenumber" name="L638" href="#L638">638</a> <em class="jxr_javadoccomment">     * understand.</em>
<a class="jxr_linenumber" name="L639" href="#L639">639</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L640" href="#L640">640</a> <em class="jxr_javadoccomment">     * @return The amount of data discarded.</em>
<a class="jxr_linenumber" name="L641" href="#L641">641</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L642" href="#L642">642</a> <em class="jxr_javadoccomment">     * @throws MalformedStreamException if the stream ends unexpectedly.</em>
<a class="jxr_linenumber" name="L643" href="#L643">643</a> <em class="jxr_javadoccomment">     * @throws IOException              if an i/o error occurs.</em>
<a class="jxr_linenumber" name="L644" href="#L644">644</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L645" href="#L645">645</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> discardBodyData() <strong class="jxr_keyword">throws</strong> MalformedStreamException, IOException {
<a class="jxr_linenumber" name="L646" href="#L646">646</a>         <strong class="jxr_keyword">return</strong> readBodyData(<strong class="jxr_keyword">null</strong>);
<a class="jxr_linenumber" name="L647" href="#L647">647</a>     }
<a class="jxr_linenumber" name="L648" href="#L648">648</a> 
<a class="jxr_linenumber" name="L649" href="#L649">649</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L650" href="#L650">650</a> <em class="jxr_javadoccomment">     * Finds the beginning of the first &lt;code&gt;encapsulation&lt;/code&gt;.</em>
<a class="jxr_linenumber" name="L651" href="#L651">651</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L652" href="#L652">652</a> <em class="jxr_javadoccomment">     * @return &lt;code&gt;true&lt;/code&gt; if an &lt;code&gt;encapsulation&lt;/code&gt; was found in</em>
<a class="jxr_linenumber" name="L653" href="#L653">653</a> <em class="jxr_javadoccomment">     *         the stream.</em>
<a class="jxr_linenumber" name="L654" href="#L654">654</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L655" href="#L655">655</a> <em class="jxr_javadoccomment">     * @throws IOException if an i/o error occurs.</em>
<a class="jxr_linenumber" name="L656" href="#L656">656</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L657" href="#L657">657</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> skipPreamble() <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="L658" href="#L658">658</a>         <em class="jxr_comment">// First delimiter may be not preceeded with a CRLF.</em>
<a class="jxr_linenumber" name="L659" href="#L659">659</a>         System.arraycopy(boundary, 2, boundary, 0, boundary.length - 2);
<a class="jxr_linenumber" name="L660" href="#L660">660</a>         boundaryLength = boundary.length - 2;
<a class="jxr_linenumber" name="L661" href="#L661">661</a>         computeBoundaryTable();
<a class="jxr_linenumber" name="L662" href="#L662">662</a>         <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="L663" href="#L663">663</a>             <em class="jxr_comment">// Discard all data up to the delimiter.</em>
<a class="jxr_linenumber" name="L664" href="#L664">664</a>             discardBodyData();
<a class="jxr_linenumber" name="L665" href="#L665">665</a> 
<a class="jxr_linenumber" name="L666" href="#L666">666</a>             <em class="jxr_comment">// Read boundary - if succeeded, the stream contains an</em>
<a class="jxr_linenumber" name="L667" href="#L667">667</a>             <em class="jxr_comment">// encapsulation.</em>
<a class="jxr_linenumber" name="L668" href="#L668">668</a>             <strong class="jxr_keyword">return</strong> readBoundary();
<a class="jxr_linenumber" name="L669" href="#L669">669</a>         } <strong class="jxr_keyword">catch</strong> (MalformedStreamException e) {
<a class="jxr_linenumber" name="L670" href="#L670">670</a>             <strong class="jxr_keyword">return</strong> false;
<a class="jxr_linenumber" name="L671" href="#L671">671</a>         } <strong class="jxr_keyword">finally</strong> {
<a class="jxr_linenumber" name="L672" href="#L672">672</a>             <em class="jxr_comment">// Restore delimiter.</em>
<a class="jxr_linenumber" name="L673" href="#L673">673</a>             System.arraycopy(boundary, 0, boundary, 2, boundary.length - 2);
<a class="jxr_linenumber" name="L674" href="#L674">674</a>             boundaryLength = boundary.length;
<a class="jxr_linenumber" name="L675" href="#L675">675</a>             boundary[0] = CR;
<a class="jxr_linenumber" name="L676" href="#L676">676</a>             boundary[1] = LF;
<a class="jxr_linenumber" name="L677" href="#L677">677</a>             computeBoundaryTable();
<a class="jxr_linenumber" name="L678" href="#L678">678</a>         }
<a class="jxr_linenumber" name="L679" href="#L679">679</a>     }
<a class="jxr_linenumber" name="L680" href="#L680">680</a> 
<a class="jxr_linenumber" name="L681" href="#L681">681</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L682" href="#L682">682</a> <em class="jxr_javadoccomment">     * Compares &lt;code&gt;count&lt;/code&gt; first bytes in the arrays</em>
<a class="jxr_linenumber" name="L683" href="#L683">683</a> <em class="jxr_javadoccomment">     * &lt;code&gt;a&lt;/code&gt; and &lt;code&gt;b&lt;/code&gt;.</em>
<a class="jxr_linenumber" name="L684" href="#L684">684</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L685" href="#L685">685</a> <em class="jxr_javadoccomment">     * @param a     The first array to compare.</em>
<a class="jxr_linenumber" name="L686" href="#L686">686</a> <em class="jxr_javadoccomment">     * @param b     The second array to compare.</em>
<a class="jxr_linenumber" name="L687" href="#L687">687</a> <em class="jxr_javadoccomment">     * @param count How many bytes should be compared.</em>
<a class="jxr_linenumber" name="L688" href="#L688">688</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L689" href="#L689">689</a> <em class="jxr_javadoccomment">     * @return &lt;code&gt;true&lt;/code&gt; if &lt;code&gt;count&lt;/code&gt; first bytes in arrays</em>
<a class="jxr_linenumber" name="L690" href="#L690">690</a> <em class="jxr_javadoccomment">     *         &lt;code&gt;a&lt;/code&gt; and &lt;code&gt;b&lt;/code&gt; are equal.</em>
<a class="jxr_linenumber" name="L691" href="#L691">691</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L692" href="#L692">692</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> arrayequals(byte[] a,
<a class="jxr_linenumber" name="L693" href="#L693">693</a>             byte[] b,
<a class="jxr_linenumber" name="L694" href="#L694">694</a>             <strong class="jxr_keyword">int</strong> count) {
<a class="jxr_linenumber" name="L695" href="#L695">695</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; count; i++) {
<a class="jxr_linenumber" name="L696" href="#L696">696</a>             <strong class="jxr_keyword">if</strong> (a[i] != b[i]) {
<a class="jxr_linenumber" name="L697" href="#L697">697</a>                 <strong class="jxr_keyword">return</strong> false;
<a class="jxr_linenumber" name="L698" href="#L698">698</a>             }
<a class="jxr_linenumber" name="L699" href="#L699">699</a>         }
<a class="jxr_linenumber" name="L700" href="#L700">700</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="L701" href="#L701">701</a>     }
<a class="jxr_linenumber" name="L702" href="#L702">702</a> 
<a class="jxr_linenumber" name="L703" href="#L703">703</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L704" href="#L704">704</a> <em class="jxr_javadoccomment">     * Searches for a byte of specified value in the &lt;code&gt;buffer&lt;/code&gt;,</em>
<a class="jxr_linenumber" name="L705" href="#L705">705</a> <em class="jxr_javadoccomment">     * starting at the specified &lt;code&gt;position&lt;/code&gt;.</em>
<a class="jxr_linenumber" name="L706" href="#L706">706</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L707" href="#L707">707</a> <em class="jxr_javadoccomment">     * @param value The value to find.</em>
<a class="jxr_linenumber" name="L708" href="#L708">708</a> <em class="jxr_javadoccomment">     * @param pos   The starting position for searching.</em>
<a class="jxr_linenumber" name="L709" href="#L709">709</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L710" href="#L710">710</a> <em class="jxr_javadoccomment">     * @return The position of byte found, counting from beginning of the</em>
<a class="jxr_linenumber" name="L711" href="#L711">711</a> <em class="jxr_javadoccomment">     *         &lt;code&gt;buffer&lt;/code&gt;, or &lt;code&gt;-1&lt;/code&gt; if not found.</em>
<a class="jxr_linenumber" name="L712" href="#L712">712</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L713" href="#L713">713</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">int</strong> findByte(byte value,
<a class="jxr_linenumber" name="L714" href="#L714">714</a>             <strong class="jxr_keyword">int</strong> pos) {
<a class="jxr_linenumber" name="L715" href="#L715">715</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = pos; i &lt; tail; i++) {
<a class="jxr_linenumber" name="L716" href="#L716">716</a>             <strong class="jxr_keyword">if</strong> (buffer[i] == value) {
<a class="jxr_linenumber" name="L717" href="#L717">717</a>                 <strong class="jxr_keyword">return</strong> i;
<a class="jxr_linenumber" name="L718" href="#L718">718</a>             }
<a class="jxr_linenumber" name="L719" href="#L719">719</a>         }
<a class="jxr_linenumber" name="L720" href="#L720">720</a> 
<a class="jxr_linenumber" name="L721" href="#L721">721</a>         <strong class="jxr_keyword">return</strong> -1;
<a class="jxr_linenumber" name="L722" href="#L722">722</a>     }
<a class="jxr_linenumber" name="L723" href="#L723">723</a> 
<a class="jxr_linenumber" name="L724" href="#L724">724</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L725" href="#L725">725</a> <em class="jxr_javadoccomment">     * Searches for the &lt;code&gt;boundary&lt;/code&gt; in the &lt;code&gt;buffer&lt;/code&gt;</em>
<a class="jxr_linenumber" name="L726" href="#L726">726</a> <em class="jxr_javadoccomment">     * region delimited by &lt;code&gt;head&lt;/code&gt; and &lt;code&gt;tail&lt;/code&gt;.</em>
<a class="jxr_linenumber" name="L727" href="#L727">727</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="L728" href="#L728">728</a> <em class="jxr_javadoccomment">     * @return The position of the boundary found, counting from the</em>
<a class="jxr_linenumber" name="L729" href="#L729">729</a> <em class="jxr_javadoccomment">     *         beginning of the &lt;code&gt;buffer&lt;/code&gt;, or &lt;code&gt;-1&lt;/code&gt; if</em>
<a class="jxr_linenumber" name="L730" href="#L730">730</a> <em class="jxr_javadoccomment">     *         not found.</em>
<a class="jxr_linenumber" name="L731" href="#L731">731</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L732" href="#L732">732</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">int</strong> findSeparator() {
<a class="jxr_linenumber" name="L733" href="#L733">733</a> 
<a class="jxr_linenumber" name="L734" href="#L734">734</a>         <strong class="jxr_keyword">int</strong> bufferPos = <strong class="jxr_keyword">this</strong>.head;
<a class="jxr_linenumber" name="L735" href="#L735">735</a>         <strong class="jxr_keyword">int</strong> tablePos = 0;
<a class="jxr_linenumber" name="L736" href="#L736">736</a> 
<a class="jxr_linenumber" name="L737" href="#L737">737</a>         <strong class="jxr_keyword">while</strong> (bufferPos &lt; <strong class="jxr_keyword">this</strong>.tail) {
<a class="jxr_linenumber" name="L738" href="#L738">738</a>             <strong class="jxr_keyword">while</strong> (tablePos &gt;= 0 &amp;&amp; buffer[bufferPos] != boundary[tablePos]) {
<a class="jxr_linenumber" name="L739" href="#L739">739</a>                 tablePos = boundaryTable[tablePos];
<a class="jxr_linenumber" name="L740" href="#L740">740</a>             }
<a class="jxr_linenumber" name="L741" href="#L741">741</a>             bufferPos++;
<a class="jxr_linenumber" name="L742" href="#L742">742</a>             tablePos++;
<a class="jxr_linenumber" name="L743" href="#L743">743</a>             <strong class="jxr_keyword">if</strong> (tablePos == boundaryLength) {
<a class="jxr_linenumber" name="L744" href="#L744">744</a>                 <strong class="jxr_keyword">return</strong> bufferPos - boundaryLength;
<a class="jxr_linenumber" name="L745" href="#L745">745</a>             }
<a class="jxr_linenumber" name="L746" href="#L746">746</a>         }
<a class="jxr_linenumber" name="L747" href="#L747">747</a>         <strong class="jxr_keyword">return</strong> -1;
<a class="jxr_linenumber" name="L748" href="#L748">748</a>     }
<a class="jxr_linenumber" name="L749" href="#L749">749</a> 
<a class="jxr_linenumber" name="L750" href="#L750">750</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L751" href="#L751">751</a> <em class="jxr_javadoccomment">     * Thrown to indicate that the input stream fails to follow the</em>
<a class="jxr_linenumber" name="L752" href="#L752">752</a> <em class="jxr_javadoccomment">     * required syntax.</em>
<a class="jxr_linenumber" name="L753" href="#L753">753</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L754" href="#L754">754</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MalformedStreamException</a> <strong class="jxr_keyword">extends</strong> IOException {
<a class="jxr_linenumber" name="L755" href="#L755">755</a> 
<a class="jxr_linenumber" name="L756" href="#L756">756</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L757" href="#L757">757</a> <em class="jxr_javadoccomment">         * The UID to use when serializing this instance.</em>
<a class="jxr_linenumber" name="L758" href="#L758">758</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L759" href="#L759">759</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">long</strong> serialVersionUID = 6466926458059796677L;
<a class="jxr_linenumber" name="L760" href="#L760">760</a> 
<a class="jxr_linenumber" name="L761" href="#L761">761</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L762" href="#L762">762</a> <em class="jxr_javadoccomment">         * Constructs a &lt;code&gt;MalformedStreamException&lt;/code&gt; with no</em>
<a class="jxr_linenumber" name="L763" href="#L763">763</a> <em class="jxr_javadoccomment">         * detail message.</em>
<a class="jxr_linenumber" name="L764" href="#L764">764</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L765" href="#L765">765</a>         <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MalformedStreamException</a>() {
<a class="jxr_linenumber" name="L766" href="#L766">766</a>             <strong class="jxr_keyword">super</strong>();
<a class="jxr_linenumber" name="L767" href="#L767">767</a>         }
<a class="jxr_linenumber" name="L768" href="#L768">768</a> 
<a class="jxr_linenumber" name="L769" href="#L769">769</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L770" href="#L770">770</a> <em class="jxr_javadoccomment">         * Constructs an &lt;code&gt;MalformedStreamException&lt;/code&gt; with</em>
<a class="jxr_linenumber" name="L771" href="#L771">771</a> <em class="jxr_javadoccomment">         * the specified detail message.</em>
<a class="jxr_linenumber" name="L772" href="#L772">772</a> <em class="jxr_javadoccomment">         *</em>
<a class="jxr_linenumber" name="L773" href="#L773">773</a> <em class="jxr_javadoccomment">         * @param message The detail message.</em>
<a class="jxr_linenumber" name="L774" href="#L774">774</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L775" href="#L775">775</a>         <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MalformedStreamException</a>(String message) {
<a class="jxr_linenumber" name="L776" href="#L776">776</a>             <strong class="jxr_keyword">super</strong>(message);
<a class="jxr_linenumber" name="L777" href="#L777">777</a>         }
<a class="jxr_linenumber" name="L778" href="#L778">778</a> 
<a class="jxr_linenumber" name="L779" href="#L779">779</a>     }
<a class="jxr_linenumber" name="L780" href="#L780">780</a> 
<a class="jxr_linenumber" name="L781" href="#L781">781</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L782" href="#L782">782</a> <em class="jxr_javadoccomment">     * Thrown upon attempt of setting an invalid boundary token.</em>
<a class="jxr_linenumber" name="L783" href="#L783">783</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L784" href="#L784">784</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">IllegalBoundaryException</a> <strong class="jxr_keyword">extends</strong> IOException {
<a class="jxr_linenumber" name="L785" href="#L785">785</a> 
<a class="jxr_linenumber" name="L786" href="#L786">786</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L787" href="#L787">787</a> <em class="jxr_javadoccomment">         * The UID to use when serializing this instance.</em>
<a class="jxr_linenumber" name="L788" href="#L788">788</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L789" href="#L789">789</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">long</strong> serialVersionUID = -161533165102632918L;
<a class="jxr_linenumber" name="L790" href="#L790">790</a> 
<a class="jxr_linenumber" name="L791" href="#L791">791</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L792" href="#L792">792</a> <em class="jxr_javadoccomment">         * Constructs an &lt;code&gt;IllegalBoundaryException&lt;/code&gt; with no</em>
<a class="jxr_linenumber" name="L793" href="#L793">793</a> <em class="jxr_javadoccomment">         * detail message.</em>
<a class="jxr_linenumber" name="L794" href="#L794">794</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L795" href="#L795">795</a>         <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">IllegalBoundaryException</a>() {
<a class="jxr_linenumber" name="L796" href="#L796">796</a>             <strong class="jxr_keyword">super</strong>();
<a class="jxr_linenumber" name="L797" href="#L797">797</a>         }
<a class="jxr_linenumber" name="L798" href="#L798">798</a> 
<a class="jxr_linenumber" name="L799" href="#L799">799</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L800" href="#L800">800</a> <em class="jxr_javadoccomment">         * Constructs an &lt;code&gt;IllegalBoundaryException&lt;/code&gt; with</em>
<a class="jxr_linenumber" name="L801" href="#L801">801</a> <em class="jxr_javadoccomment">         * the specified detail message.</em>
<a class="jxr_linenumber" name="L802" href="#L802">802</a> <em class="jxr_javadoccomment">         *</em>
<a class="jxr_linenumber" name="L803" href="#L803">803</a> <em class="jxr_javadoccomment">         * @param message The detail message.</em>
<a class="jxr_linenumber" name="L804" href="#L804">804</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L805" href="#L805">805</a>         <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">IllegalBoundaryException</a>(String message) {
<a class="jxr_linenumber" name="L806" href="#L806">806</a>             <strong class="jxr_keyword">super</strong>(message);
<a class="jxr_linenumber" name="L807" href="#L807">807</a>         }
<a class="jxr_linenumber" name="L808" href="#L808">808</a> 
<a class="jxr_linenumber" name="L809" href="#L809">809</a>     }
<a class="jxr_linenumber" name="L810" href="#L810">810</a> 
<a class="jxr_linenumber" name="L811" href="#L811">811</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L812" href="#L812">812</a> <em class="jxr_javadoccomment">     * An {@link InputStream} for reading an items contents.</em>
<a class="jxr_linenumber" name="L813" href="#L813">813</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="L814" href="#L814">814</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">ItemInputStream</a> <strong class="jxr_keyword">extends</strong> InputStream <strong class="jxr_keyword">implements</strong> <a href="../../../../org/apache/commons/fileupload/util/Closeable.html">Closeable</a> {
<a class="jxr_linenumber" name="L815" href="#L815">815</a> 
<a class="jxr_linenumber" name="L816" href="#L816">816</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L817" href="#L817">817</a> <em class="jxr_javadoccomment">         * The number of bytes, which have been read so far.</em>
<a class="jxr_linenumber" name="L818" href="#L818">818</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L819" href="#L819">819</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">long</strong> total;
<a class="jxr_linenumber" name="L820" href="#L820">820</a> 
<a class="jxr_linenumber" name="L821" href="#L821">821</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L822" href="#L822">822</a> <em class="jxr_javadoccomment">         * The number of bytes, which must be hold, because</em>
<a class="jxr_linenumber" name="L823" href="#L823">823</a> <em class="jxr_javadoccomment">         * they might be a part of the boundary.</em>
<a class="jxr_linenumber" name="L824" href="#L824">824</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L825" href="#L825">825</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> pad;
<a class="jxr_linenumber" name="L826" href="#L826">826</a> 
<a class="jxr_linenumber" name="L827" href="#L827">827</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L828" href="#L828">828</a> <em class="jxr_javadoccomment">         * The current offset in the buffer.</em>
<a class="jxr_linenumber" name="L829" href="#L829">829</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L830" href="#L830">830</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> pos;
<a class="jxr_linenumber" name="L831" href="#L831">831</a> 
<a class="jxr_linenumber" name="L832" href="#L832">832</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L833" href="#L833">833</a> <em class="jxr_javadoccomment">         * Whether the stream is already closed.</em>
<a class="jxr_linenumber" name="L834" href="#L834">834</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L835" href="#L835">835</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> closed;
<a class="jxr_linenumber" name="L836" href="#L836">836</a> 
<a class="jxr_linenumber" name="L837" href="#L837">837</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L838" href="#L838">838</a> <em class="jxr_javadoccomment">         * Creates a new instance.</em>
<a class="jxr_linenumber" name="L839" href="#L839">839</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L840" href="#L840">840</a>         <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">ItemInputStream</a>() {
<a class="jxr_linenumber" name="L841" href="#L841">841</a>             findSeparator();
<a class="jxr_linenumber" name="L842" href="#L842">842</a>         }
<a class="jxr_linenumber" name="L843" href="#L843">843</a> 
<a class="jxr_linenumber" name="L844" href="#L844">844</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L845" href="#L845">845</a> <em class="jxr_javadoccomment">         * Called for finding the separator.</em>
<a class="jxr_linenumber" name="L846" href="#L846">846</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L847" href="#L847">847</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> findSeparator() {
<a class="jxr_linenumber" name="L848" href="#L848">848</a>             pos = MultipartStream.<strong class="jxr_keyword">this</strong>.findSeparator();
<a class="jxr_linenumber" name="L849" href="#L849">849</a>             <strong class="jxr_keyword">if</strong> (pos == -1) {
<a class="jxr_linenumber" name="L850" href="#L850">850</a>                 <strong class="jxr_keyword">if</strong> (tail - head &gt; keepRegion) {
<a class="jxr_linenumber" name="L851" href="#L851">851</a>                     pad = keepRegion;
<a class="jxr_linenumber" name="L852" href="#L852">852</a>                 } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="L853" href="#L853">853</a>                     pad = tail - head;
<a class="jxr_linenumber" name="L854" href="#L854">854</a>                 }
<a class="jxr_linenumber" name="L855" href="#L855">855</a>             }
<a class="jxr_linenumber" name="L856" href="#L856">856</a>         }
<a class="jxr_linenumber" name="L857" href="#L857">857</a> 
<a class="jxr_linenumber" name="L858" href="#L858">858</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L859" href="#L859">859</a> <em class="jxr_javadoccomment">         * Returns the number of bytes, which have been read</em>
<a class="jxr_linenumber" name="L860" href="#L860">860</a> <em class="jxr_javadoccomment">         * by the stream.</em>
<a class="jxr_linenumber" name="L861" href="#L861">861</a> <em class="jxr_javadoccomment">         *</em>
<a class="jxr_linenumber" name="L862" href="#L862">862</a> <em class="jxr_javadoccomment">         * @return Number of bytes, which have been read so far.</em>
<a class="jxr_linenumber" name="L863" href="#L863">863</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L864" href="#L864">864</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> getBytesRead() {
<a class="jxr_linenumber" name="L865" href="#L865">865</a>             <strong class="jxr_keyword">return</strong> total;
<a class="jxr_linenumber" name="L866" href="#L866">866</a>         }
<a class="jxr_linenumber" name="L867" href="#L867">867</a> 
<a class="jxr_linenumber" name="L868" href="#L868">868</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L869" href="#L869">869</a> <em class="jxr_javadoccomment">         * Returns the number of bytes, which are currently</em>
<a class="jxr_linenumber" name="L870" href="#L870">870</a> <em class="jxr_javadoccomment">         * available, without blocking.</em>
<a class="jxr_linenumber" name="L871" href="#L871">871</a> <em class="jxr_javadoccomment">         *</em>
<a class="jxr_linenumber" name="L872" href="#L872">872</a> <em class="jxr_javadoccomment">         * @throws IOException An I/O error occurs.</em>
<a class="jxr_linenumber" name="L873" href="#L873">873</a> <em class="jxr_javadoccomment">         * @return Number of bytes in the buffer.</em>
<a class="jxr_linenumber" name="L874" href="#L874">874</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L875" href="#L875">875</a>         @Override
<a class="jxr_linenumber" name="L876" href="#L876">876</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> available() <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="L877" href="#L877">877</a>             <strong class="jxr_keyword">if</strong> (pos == -1) {
<a class="jxr_linenumber" name="L878" href="#L878">878</a>                 <strong class="jxr_keyword">return</strong> tail - head - pad;
<a class="jxr_linenumber" name="L879" href="#L879">879</a>             }
<a class="jxr_linenumber" name="L880" href="#L880">880</a>             <strong class="jxr_keyword">return</strong> pos - head;
<a class="jxr_linenumber" name="L881" href="#L881">881</a>         }
<a class="jxr_linenumber" name="L882" href="#L882">882</a> 
<a class="jxr_linenumber" name="L883" href="#L883">883</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L884" href="#L884">884</a> <em class="jxr_javadoccomment">         * Offset when converting negative bytes to integers.</em>
<a class="jxr_linenumber" name="L885" href="#L885">885</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L886" href="#L886">886</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> BYTE_POSITIVE_OFFSET = 256;
<a class="jxr_linenumber" name="L887" href="#L887">887</a> 
<a class="jxr_linenumber" name="L888" href="#L888">888</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L889" href="#L889">889</a> <em class="jxr_javadoccomment">         * Returns the next byte in the stream.</em>
<a class="jxr_linenumber" name="L890" href="#L890">890</a> <em class="jxr_javadoccomment">         *</em>
<a class="jxr_linenumber" name="L891" href="#L891">891</a> <em class="jxr_javadoccomment">         * @return The next byte in the stream, as a non-negative</em>
<a class="jxr_linenumber" name="L892" href="#L892">892</a> <em class="jxr_javadoccomment">         *   integer, or -1 for EOF.</em>
<a class="jxr_linenumber" name="L893" href="#L893">893</a> <em class="jxr_javadoccomment">         * @throws IOException An I/O error occurred.</em>
<a class="jxr_linenumber" name="L894" href="#L894">894</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L895" href="#L895">895</a>         @Override
<a class="jxr_linenumber" name="L896" href="#L896">896</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> read() <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="L897" href="#L897">897</a>             <strong class="jxr_keyword">if</strong> (closed) {
<a class="jxr_linenumber" name="L898" href="#L898">898</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> FileItemStream.ItemSkippedException();
<a class="jxr_linenumber" name="L899" href="#L899">899</a>             }
<a class="jxr_linenumber" name="L900" href="#L900">900</a>             <strong class="jxr_keyword">if</strong> (available() == 0 &amp;&amp; makeAvailable() == 0) {
<a class="jxr_linenumber" name="L901" href="#L901">901</a>                 <strong class="jxr_keyword">return</strong> -1;
<a class="jxr_linenumber" name="L902" href="#L902">902</a>             }
<a class="jxr_linenumber" name="L903" href="#L903">903</a>             ++total;
<a class="jxr_linenumber" name="L904" href="#L904">904</a>             <strong class="jxr_keyword">int</strong> b = buffer[head++];
<a class="jxr_linenumber" name="L905" href="#L905">905</a>             <strong class="jxr_keyword">if</strong> (b &gt;= 0) {
<a class="jxr_linenumber" name="L906" href="#L906">906</a>                 <strong class="jxr_keyword">return</strong> b;
<a class="jxr_linenumber" name="L907" href="#L907">907</a>             }
<a class="jxr_linenumber" name="L908" href="#L908">908</a>             <strong class="jxr_keyword">return</strong> b + BYTE_POSITIVE_OFFSET;
<a class="jxr_linenumber" name="L909" href="#L909">909</a>         }
<a class="jxr_linenumber" name="L910" href="#L910">910</a> 
<a class="jxr_linenumber" name="L911" href="#L911">911</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L912" href="#L912">912</a> <em class="jxr_javadoccomment">         * Reads bytes into the given buffer.</em>
<a class="jxr_linenumber" name="L913" href="#L913">913</a> <em class="jxr_javadoccomment">         *</em>
<a class="jxr_linenumber" name="L914" href="#L914">914</a> <em class="jxr_javadoccomment">         * @param b The destination buffer, where to write to.</em>
<a class="jxr_linenumber" name="L915" href="#L915">915</a> <em class="jxr_javadoccomment">         * @param off Offset of the first byte in the buffer.</em>
<a class="jxr_linenumber" name="L916" href="#L916">916</a> <em class="jxr_javadoccomment">         * @param len Maximum number of bytes to read.</em>
<a class="jxr_linenumber" name="L917" href="#L917">917</a> <em class="jxr_javadoccomment">         * @return Number of bytes, which have been actually read,</em>
<a class="jxr_linenumber" name="L918" href="#L918">918</a> <em class="jxr_javadoccomment">         *   or -1 for EOF.</em>
<a class="jxr_linenumber" name="L919" href="#L919">919</a> <em class="jxr_javadoccomment">         * @throws IOException An I/O error occurred.</em>
<a class="jxr_linenumber" name="L920" href="#L920">920</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L921" href="#L921">921</a>         @Override
<a class="jxr_linenumber" name="L922" href="#L922">922</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> read(byte[] b, <strong class="jxr_keyword">int</strong> off, <strong class="jxr_keyword">int</strong> len) <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="L923" href="#L923">923</a>             <strong class="jxr_keyword">if</strong> (closed) {
<a class="jxr_linenumber" name="L924" href="#L924">924</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> FileItemStream.ItemSkippedException();
<a class="jxr_linenumber" name="L925" href="#L925">925</a>             }
<a class="jxr_linenumber" name="L926" href="#L926">926</a>             <strong class="jxr_keyword">if</strong> (len == 0) {
<a class="jxr_linenumber" name="L927" href="#L927">927</a>                 <strong class="jxr_keyword">return</strong> 0;
<a class="jxr_linenumber" name="L928" href="#L928">928</a>             }
<a class="jxr_linenumber" name="L929" href="#L929">929</a>             <strong class="jxr_keyword">int</strong> res = available();
<a class="jxr_linenumber" name="L930" href="#L930">930</a>             <strong class="jxr_keyword">if</strong> (res == 0) {
<a class="jxr_linenumber" name="L931" href="#L931">931</a>                 res = makeAvailable();
<a class="jxr_linenumber" name="L932" href="#L932">932</a>                 <strong class="jxr_keyword">if</strong> (res == 0) {
<a class="jxr_linenumber" name="L933" href="#L933">933</a>                     <strong class="jxr_keyword">return</strong> -1;
<a class="jxr_linenumber" name="L934" href="#L934">934</a>                 }
<a class="jxr_linenumber" name="L935" href="#L935">935</a>             }
<a class="jxr_linenumber" name="L936" href="#L936">936</a>             res = Math.min(res, len);
<a class="jxr_linenumber" name="L937" href="#L937">937</a>             System.arraycopy(buffer, head, b, off, res);
<a class="jxr_linenumber" name="L938" href="#L938">938</a>             head += res;
<a class="jxr_linenumber" name="L939" href="#L939">939</a>             total += res;
<a class="jxr_linenumber" name="L940" href="#L940">940</a>             <strong class="jxr_keyword">return</strong> res;
<a class="jxr_linenumber" name="L941" href="#L941">941</a>         }
<a class="jxr_linenumber" name="L942" href="#L942">942</a> 
<a class="jxr_linenumber" name="L943" href="#L943">943</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L944" href="#L944">944</a> <em class="jxr_javadoccomment">         * Closes the input stream.</em>
<a class="jxr_linenumber" name="L945" href="#L945">945</a> <em class="jxr_javadoccomment">         *</em>
<a class="jxr_linenumber" name="L946" href="#L946">946</a> <em class="jxr_javadoccomment">         * @throws IOException An I/O error occurred.</em>
<a class="jxr_linenumber" name="L947" href="#L947">947</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L948" href="#L948">948</a>         @Override
<a class="jxr_linenumber" name="L949" href="#L949">949</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> close() <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="L950" href="#L950">950</a>             close(false);
<a class="jxr_linenumber" name="L951" href="#L951">951</a>         }
<a class="jxr_linenumber" name="L952" href="#L952">952</a> 
<a class="jxr_linenumber" name="L953" href="#L953">953</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L954" href="#L954">954</a> <em class="jxr_javadoccomment">         * Closes the input stream.</em>
<a class="jxr_linenumber" name="L955" href="#L955">955</a> <em class="jxr_javadoccomment">         *</em>
<a class="jxr_linenumber" name="L956" href="#L956">956</a> <em class="jxr_javadoccomment">         * @param pCloseUnderlying Whether to close the underlying stream</em>
<a class="jxr_linenumber" name="L957" href="#L957">957</a> <em class="jxr_javadoccomment">         *   (hard close)</em>
<a class="jxr_linenumber" name="L958" href="#L958">958</a> <em class="jxr_javadoccomment">         * @throws IOException An I/O error occurred.</em>
<a class="jxr_linenumber" name="L959" href="#L959">959</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L960" href="#L960">960</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> close(<strong class="jxr_keyword">boolean</strong> pCloseUnderlying) <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="L961" href="#L961">961</a>             <strong class="jxr_keyword">if</strong> (closed) {
<a class="jxr_linenumber" name="L962" href="#L962">962</a>                 <strong class="jxr_keyword">return</strong>;
<a class="jxr_linenumber" name="L963" href="#L963">963</a>             }
<a class="jxr_linenumber" name="L964" href="#L964">964</a>             <strong class="jxr_keyword">if</strong> (pCloseUnderlying) {
<a class="jxr_linenumber" name="L965" href="#L965">965</a>                 closed = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="L966" href="#L966">966</a>                 input.close();
<a class="jxr_linenumber" name="L967" href="#L967">967</a>             } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="L968" href="#L968">968</a>                 <strong class="jxr_keyword">for</strong> (;;) {
<a class="jxr_linenumber" name="L969" href="#L969">969</a>                     <strong class="jxr_keyword">int</strong> av = available();
<a class="jxr_linenumber" name="L970" href="#L970">970</a>                     <strong class="jxr_keyword">if</strong> (av == 0) {
<a class="jxr_linenumber" name="L971" href="#L971">971</a>                         av = makeAvailable();
<a class="jxr_linenumber" name="L972" href="#L972">972</a>                         <strong class="jxr_keyword">if</strong> (av == 0) {
<a class="jxr_linenumber" name="L973" href="#L973">973</a>                             <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="L974" href="#L974">974</a>                         }
<a class="jxr_linenumber" name="L975" href="#L975">975</a>                     }
<a class="jxr_linenumber" name="L976" href="#L976">976</a>                     skip(av);
<a class="jxr_linenumber" name="L977" href="#L977">977</a>                 }
<a class="jxr_linenumber" name="L978" href="#L978">978</a>             }
<a class="jxr_linenumber" name="L979" href="#L979">979</a>             closed = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="L980" href="#L980">980</a>         }
<a class="jxr_linenumber" name="L981" href="#L981">981</a> 
<a class="jxr_linenumber" name="L982" href="#L982">982</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L983" href="#L983">983</a> <em class="jxr_javadoccomment">         * Skips the given number of bytes.</em>
<a class="jxr_linenumber" name="L984" href="#L984">984</a> <em class="jxr_javadoccomment">         *</em>
<a class="jxr_linenumber" name="L985" href="#L985">985</a> <em class="jxr_javadoccomment">         * @param bytes Number of bytes to skip.</em>
<a class="jxr_linenumber" name="L986" href="#L986">986</a> <em class="jxr_javadoccomment">         * @return The number of bytes, which have actually been</em>
<a class="jxr_linenumber" name="L987" href="#L987">987</a> <em class="jxr_javadoccomment">         *   skipped.</em>
<a class="jxr_linenumber" name="L988" href="#L988">988</a> <em class="jxr_javadoccomment">         * @throws IOException An I/O error occurred.</em>
<a class="jxr_linenumber" name="L989" href="#L989">989</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L990" href="#L990">990</a>         @Override
<a class="jxr_linenumber" name="L991" href="#L991">991</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> skip(<strong class="jxr_keyword">long</strong> bytes) <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="L992" href="#L992">992</a>             <strong class="jxr_keyword">if</strong> (closed) {
<a class="jxr_linenumber" name="L993" href="#L993">993</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> FileItemStream.ItemSkippedException();
<a class="jxr_linenumber" name="L994" href="#L994">994</a>             }
<a class="jxr_linenumber" name="L995" href="#L995">995</a>             <strong class="jxr_keyword">int</strong> av = available();
<a class="jxr_linenumber" name="L996" href="#L996">996</a>             <strong class="jxr_keyword">if</strong> (av == 0) {
<a class="jxr_linenumber" name="L997" href="#L997">997</a>                 av = makeAvailable();
<a class="jxr_linenumber" name="L998" href="#L998">998</a>                 <strong class="jxr_keyword">if</strong> (av == 0) {
<a class="jxr_linenumber" name="L999" href="#L999">999</a>                     <strong class="jxr_keyword">return</strong> 0;
<a class="jxr_linenumber" name="L1000" href="#L1000">1000</a>                 }
<a class="jxr_linenumber" name="L1001" href="#L1001">1001</a>             }
<a class="jxr_linenumber" name="L1002" href="#L1002">1002</a>             <strong class="jxr_keyword">long</strong> res = Math.min(av, bytes);
<a class="jxr_linenumber" name="L1003" href="#L1003">1003</a>             head += res;
<a class="jxr_linenumber" name="L1004" href="#L1004">1004</a>             <strong class="jxr_keyword">return</strong> res;
<a class="jxr_linenumber" name="L1005" href="#L1005">1005</a>         }
<a class="jxr_linenumber" name="L1006" href="#L1006">1006</a> 
<a class="jxr_linenumber" name="L1007" href="#L1007">1007</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L1008" href="#L1008">1008</a> <em class="jxr_javadoccomment">         * Attempts to read more data.</em>
<a class="jxr_linenumber" name="L1009" href="#L1009">1009</a> <em class="jxr_javadoccomment">         *</em>
<a class="jxr_linenumber" name="L1010" href="#L1010">1010</a> <em class="jxr_javadoccomment">         * @return Number of available bytes</em>
<a class="jxr_linenumber" name="L1011" href="#L1011">1011</a> <em class="jxr_javadoccomment">         * @throws IOException An I/O error occurred.</em>
<a class="jxr_linenumber" name="L1012" href="#L1012">1012</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L1013" href="#L1013">1013</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> makeAvailable() <strong class="jxr_keyword">throws</strong> IOException {
<a class="jxr_linenumber" name="L1014" href="#L1014">1014</a>             <strong class="jxr_keyword">if</strong> (pos != -1) {
<a class="jxr_linenumber" name="L1015" href="#L1015">1015</a>                 <strong class="jxr_keyword">return</strong> 0;
<a class="jxr_linenumber" name="L1016" href="#L1016">1016</a>             }
<a class="jxr_linenumber" name="L1017" href="#L1017">1017</a> 
<a class="jxr_linenumber" name="L1018" href="#L1018">1018</a>             <em class="jxr_comment">// Move the data to the beginning of the buffer.</em>
<a class="jxr_linenumber" name="L1019" href="#L1019">1019</a>             total += tail - head - pad;
<a class="jxr_linenumber" name="L1020" href="#L1020">1020</a>             System.arraycopy(buffer, tail - pad, buffer, 0, pad);
<a class="jxr_linenumber" name="L1021" href="#L1021">1021</a> 
<a class="jxr_linenumber" name="L1022" href="#L1022">1022</a>             <em class="jxr_comment">// Refill buffer with new data.</em>
<a class="jxr_linenumber" name="L1023" href="#L1023">1023</a>             head = 0;
<a class="jxr_linenumber" name="L1024" href="#L1024">1024</a>             tail = pad;
<a class="jxr_linenumber" name="L1025" href="#L1025">1025</a> 
<a class="jxr_linenumber" name="L1026" href="#L1026">1026</a>             <strong class="jxr_keyword">for</strong> (;;) {
<a class="jxr_linenumber" name="L1027" href="#L1027">1027</a>                 <strong class="jxr_keyword">int</strong> bytesRead = input.read(buffer, tail, bufSize - tail);
<a class="jxr_linenumber" name="L1028" href="#L1028">1028</a>                 <strong class="jxr_keyword">if</strong> (bytesRead == -1) {
<a class="jxr_linenumber" name="L1029" href="#L1029">1029</a>                     <em class="jxr_comment">// The last pad amount is left in the buffer.</em>
<a class="jxr_linenumber" name="L1030" href="#L1030">1030</a>                     <em class="jxr_comment">// Boundary can't be in there so signal an error</em>
<a class="jxr_linenumber" name="L1031" href="#L1031">1031</a>                     <em class="jxr_comment">// condition.</em>
<a class="jxr_linenumber" name="L1032" href="#L1032">1032</a>                     <strong class="jxr_keyword">final</strong> String msg = <span class="jxr_string">"Stream ended unexpectedly"</span>;
<a class="jxr_linenumber" name="L1033" href="#L1033">1033</a>                     <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/commons/fileupload/MultipartStream.html">MalformedStreamException</a>(msg);
<a class="jxr_linenumber" name="L1034" href="#L1034">1034</a>                 }
<a class="jxr_linenumber" name="L1035" href="#L1035">1035</a>                 <strong class="jxr_keyword">if</strong> (notifier != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="L1036" href="#L1036">1036</a>                     notifier.noteBytesRead(bytesRead);
<a class="jxr_linenumber" name="L1037" href="#L1037">1037</a>                 }
<a class="jxr_linenumber" name="L1038" href="#L1038">1038</a>                 tail += bytesRead;
<a class="jxr_linenumber" name="L1039" href="#L1039">1039</a> 
<a class="jxr_linenumber" name="L1040" href="#L1040">1040</a>                 findSeparator();
<a class="jxr_linenumber" name="L1041" href="#L1041">1041</a>                 <strong class="jxr_keyword">int</strong> av = available();
<a class="jxr_linenumber" name="L1042" href="#L1042">1042</a> 
<a class="jxr_linenumber" name="L1043" href="#L1043">1043</a>                 <strong class="jxr_keyword">if</strong> (av &gt; 0 || pos != -1) {
<a class="jxr_linenumber" name="L1044" href="#L1044">1044</a>                     <strong class="jxr_keyword">return</strong> av;
<a class="jxr_linenumber" name="L1045" href="#L1045">1045</a>                 }
<a class="jxr_linenumber" name="L1046" href="#L1046">1046</a>             }
<a class="jxr_linenumber" name="L1047" href="#L1047">1047</a>         }
<a class="jxr_linenumber" name="L1048" href="#L1048">1048</a> 
<a class="jxr_linenumber" name="L1049" href="#L1049">1049</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="L1050" href="#L1050">1050</a> <em class="jxr_javadoccomment">         * Returns, whether the stream is closed.</em>
<a class="jxr_linenumber" name="L1051" href="#L1051">1051</a> <em class="jxr_javadoccomment">         *</em>
<a class="jxr_linenumber" name="L1052" href="#L1052">1052</a> <em class="jxr_javadoccomment">         * @return True, if the stream is closed, otherwise false.</em>
<a class="jxr_linenumber" name="L1053" href="#L1053">1053</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="L1054" href="#L1054">1054</a>         @Override
<a class="jxr_linenumber" name="L1055" href="#L1055">1055</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isClosed() {
<a class="jxr_linenumber" name="L1056" href="#L1056">1056</a>             <strong class="jxr_keyword">return</strong> closed;
<a class="jxr_linenumber" name="L1057" href="#L1057">1057</a>         }
<a class="jxr_linenumber" name="L1058" href="#L1058">1058</a> 
<a class="jxr_linenumber" name="L1059" href="#L1059">1059</a>     }
<a class="jxr_linenumber" name="L1060" href="#L1060">1060</a> 
<a class="jxr_linenumber" name="L1061" href="#L1061">1061</a> }
</pre>
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